


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
489 FNUS56 KSEW 272055 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 155 PM PDT Wed Aug 27 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .DISCUSSION...Thunderstorms over the Cascades and the eastern slopes of the Olympic mountains today will diminish by late tonight. Thunderstorms will redevelop tomorrow during the day and last until around 9 PM Thursday night. Lightning on dry fuels that have reached or exceeded the 90th percentile ERC values is the main concern, but any thunderstorms that develop will be capable of erratic, gusty winds and brief heavy rain as monsoonal moisture has been brought into the area from the Southwest. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-281115- North and Central Coastal Strip- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Patchy dense fog. Slight chance of showers. * Min temperature.......Around 57. * Max humidity..........92-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Southwest winds around 3 mph in the evening becoming light. * Ridges/upr slopes...Southwest winds around 3 mph in the evening becoming light. * Mixing height.........400-600 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY... * Sky/weather...........Partly sunny. Patchy dense fog in the morning. Slight chance of showers in the morning. * Max temperature.......63-73. * Min humidity..........76-91 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming southwest around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........500-900 ft AGL. * Transport winds.......Southeast around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Patchy fog. * Min temperature.......Around 57. * Max humidity..........90-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Southwest winds up to 3 mph. * Ridges/upr slopes...Southwest winds up to 3 mph. * Mixing height.........400-500 ft AGL. * Transport winds.......West around 5 mph shifting to the southwest after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY... * Sky/weather...........Partly sunny. * Max temperature.......63-73. * Min humidity..........72-87 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming southwest around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming southwest around 4 mph in the afternoon. * Mixing height.........500-1200 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. West winds around 3 mph in the evening becoming light. .SATURDAY...Mostly cloudy with a chance of showers. Highs in the upper 60s. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with slight chance of showers. Patchy fog after midnight. Lows in the upper 50s. Light winds. .SUNDAY...Patchy fog in the morning. Partly sunny with slight chance of showers. Highs in the upper 60s. Southwest winds around 3 mph. .SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .LABOR DAY...Partly sunny. Patchy fog in the morning. Highs 65 to 75. Light winds. .TUESDAY...Partly cloudy. Lows in the mid 50s. Highs 67 to 77. .WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs 68 to 78. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ650-281115- North Coastal Lowlands- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers through the night. Patchy fog after midnight. * Min temperature.......55-65. * Max humidity..........73-88 percent. * 20-foot winds......... * Valleys/lwr slopes..South winds up to 3 mph. * Ridges/upr slopes...Southwest winds around 3 mph in the evening becoming light. * Mixing height.........500-900 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .THURSDAY... * Sky/weather...........Partly sunny. Patchy dense fog in the morning. Chance of showers in the morning. * Max temperature.......67-77. * Min humidity..........67-82 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 3 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 3 mph in the afternoon. * Mixing height.........600-1500 ft AGL. * Transport winds.......Southeast around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...5 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Patchy fog after midnight. * Min temperature.......54-64. * Max humidity..........76-91 percent. * 20-foot winds......... * Valleys/lwr slopes..Southwest winds up to 3 mph. * Ridges/upr slopes...Southwest winds up to 3 mph. * Mixing height.........500-800 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the south after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......69-79. * Min humidity..........59-74 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming southwest around 3 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 4 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Mostly cloudy. Patchy fog after midnight. Lows 52 to 62. West winds around 3 mph in the evening becoming light. .SATURDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. Highs 66 to 76. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Chance of showers in the evening, then slight chance of showers after midnight. Patchy fog after midnight. Lows in the mid 50s. Light winds. .SUNDAY...Patchy fog in the morning. Partly sunny with slight chance of showers. Highs 66 to 76. Light winds. .SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .LABOR DAY...Mostly sunny. Patchy fog in the morning. Highs 69 to 79. Light winds. .TUESDAY...Partly cloudy. Patchy fog after midnight. Lows 52 to 62. Highs 72 to 82. .WEDNESDAY...Partly cloudy. Lows 54 to 64. Highs 73 to 83. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ651-281115- Central Coastal Lowlands- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Patchy fog. Slight chance of showers. * Min temperature.......54-64. * Max humidity..........80-95 percent. * 20-foot winds......... * Valleys/lwr slopes..Southwest winds up to 3 mph. * Ridges/upr slopes...West winds up to 3 mph. * Mixing height.........500-800 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .THURSDAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. Slight chance of showers in the morning. * Max temperature.......71-81. * Min humidity..........62-77 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 3 mph in the afternoon. * Ridges/upr slopes...Southwest winds up to 3 mph. * Mixing height.........700-1700 ft AGL. * Transport winds.......Southeast around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Patchy fog after midnight. * Min temperature.......53-63. * Max humidity..........79-94 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 3 mph in the evening becoming light. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........400-800 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......72-82...except 69-79 ridges. * Min humidity..........57-72 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming southwest around 3 mph in the afternoon. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .FRIDAY NIGHT...Mostly cloudy. Lows in the mid 50s. West winds around 4 mph in the evening becoming light. .SATURDAY...Mostly cloudy. Chance of showers in the morning, then slight chance of showers in the afternoon. Highs 68 to 78 valleys... 63 to 73 ridges. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Slight chance of showers in the evening. Patchy fog after midnight. Lows in the mid 50s. Light winds. .SUNDAY...Partly sunny. Patchy fog in the morning. Highs 70 to 80 valleys...64 to 74 ridges. Light winds. .SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .LABOR DAY...Mostly sunny. Patchy fog in the morning. Highs 73 to 83 valleys...66 to 76 ridges. Light winds. .TUESDAY...Partly cloudy. Patchy fog. Lows in the mid 50s. Highs 76 to 86 valleys...70 to 80 ridges. .WEDNESDAY...Partly cloudy. Lows 53 to 63. Highs 76 to 86 valleys... 71 to 81 ridges. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ652-281115- West Portion of the Olympic Mountains- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers in the evening, then chance of showers after midnight. * Min temperature.......54-64. * Max humidity..........69-84 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph. * Ridges/upr slopes...Light winds. * Mixing height.........300-500 ft AGL. * Transport winds.......South around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...8 percent. * Freezing level........12500 Feet. .THURSDAY... * Sky/weather...........Partly sunny. Chance of showers in the morning, then slight chance of showers in the afternoon. * Max temperature.......68-78...except 63-73 ridges. * Min humidity..........63-78 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........600-1600 ft AGL. * Transport winds.......East around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...9 percent. * Freezing level........12000 Feet. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......52-62. * Max humidity..........72-87 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds. * Mixing height.........300-700 ft AGL. * Transport winds.......East around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........12500 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......69-79...except 65-75 ridges. * Min humidity..........49-64 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming southwest around 4 mph in the afternoon. * Mixing height.........300 ft AGL increasing to 2600 ft AGL in the afternoon. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........13500 Feet. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows in the upper 50s. West winds around 3 mph in the evening becoming light. .SATURDAY...Partly sunny with a chance of showers. Freezing level 12500 feet. Highs 62 to 72. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Chance of showers in the evening, then slight chance of showers after midnight. Freezing level 11500 feet. Lows 49 to 59. Light winds. .SUNDAY...Mostly sunny with slight chance of showers. Freezing level 11000 feet. Highs 63 to 73 valleys...58 to 68 ridges. Light winds. .SUNDAY NIGHT...Partly cloudy. Freezing level 11000 feet. Lows in the mid 50s. Light winds. .LABOR DAY...Sunny. Freezing level 12500 feet. Highs 66 to 76 valleys...61 to 71 ridges. Light winds. .TUESDAY...Mostly clear. Freezing level 14000 feet. Lows in the upper 50s. Highs 69 to 79. .WEDNESDAY...Mostly clear. Freezing level 14500 feet. Lows in the lower 60s. Highs 70 to 80. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ661-281115- East Portion of the Olympic Mountains- 155 PM PDT Wed Aug 27 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers and thunderstorms in the evening, then chance of showers after midnight. Haze after midnight. * Min temperature.......52-62. * Max humidity..........74-89 percent...except 66-81 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds. * Mixing height.........400-600 ft AGL. * Transport winds.......North around 5 mph shifting to the east after midnight. * CWR (>0.25)...........5 percent. * Chance of Lightning...16 percent. * Freezing level........12500 Feet. .THURSDAY... * Sky/weather...........Partly sunny. Slight chance of showers and thunderstorms through the day. * Max temperature.......70-80...except 62-72 ridges. * Min humidity..........57-72 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming southeast around 3 mph in the afternoon. * Mixing height.........700-1700 ft AGL. * Transport winds.......East around 5 mph. * CWR (>0.25)...........10 percent. * Chance of Lightning...17 percent. * Freezing level........12500 Feet. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min temperature.......52-62. * Max humidity..........74-89 percent...except 66-81 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming west around 3 mph after midnight. * Mixing height.........400-800 ft AGL. * Transport winds.......Southeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...15 percent. * Freezing level........13000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......73-83...except 66-76 ridges. * Min humidity..........43-58 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Southwest winds around 3 mph shifting to the southeast around 4 mph in the afternoon. * Mixing height.........400 ft AGL increasing to 2600 ft AGL in the afternoon. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........13000 Feet. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows 52 to 62. West winds 3 to 5 mph. .SATURDAY...Mostly sunny. Slight chance of showers in the morning, then chance of showers in the afternoon. Freezing level 12500 feet. Highs 66 to 76 valleys...59 to 69 ridges. West winds 3 to 5 mph. .SATURDAY NIGHT...Partly cloudy. Chance of showers in the evening, then slight chance of showers after midnight. Freezing level 12000 feet. Lows 48 to 58. West winds around 3 mph. .SUNDAY...Mostly sunny with slight chance of showers. Freezing level 11500 feet. Highs 64 to 74 valleys...55 to 65 ridges. Light winds. .SUNDAY NIGHT...Partly cloudy. Freezing level 11500 feet. Lows 48 to 58. Light winds. .LABOR DAY...Sunny. Freezing level 12500 feet. Highs 67 to 77 valleys...59 to 69 ridges. Northeast winds around 3 mph. .TUESDAY...Mostly clear. Freezing level 14000 feet. Lows 51 to 61. Highs 72 to 82 valleys...65 to 75 ridges. .WEDNESDAY...Mostly clear. Freezing level 14500 feet. Lows 55 to 65. Highs 73 to 83 valleys...66 to 76 ridges. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ653-281115- Strait of Juan De Fuca and Northwest Interior Lowlands- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers in the evening, then chance of showers after midnight. * Min temperature.......55-65. * Max humidity..........76-91 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........500-600 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........5 percent. * Chance of Lightning...7 percent. .THURSDAY... * Sky/weather...........Partly sunny. Chance of showers in the morning. * Max temperature.......70-80. * Min humidity..........60-75 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........500-900 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the north in the afternoon. * CWR (>0.25)...........5 percent. * Chance of Lightning...9 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-64. * Max humidity..........77-92 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........500-600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......71-81. * Min humidity..........55-70 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........500-1100 ft AGL. * Transport winds.......South around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds 3 to 5 mph. .SATURDAY...Partly sunny with slight chance of showers. Highs 69 to 79. Southwest winds 3 to 6 mph. .SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers after midnight. Lows in the mid 50s. West winds around 3 mph. .SUNDAY...Partly sunny with slight chance of showers. Highs 68 to 78. Southwest winds around 3 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. West winds around 3 mph. .LABOR DAY...Mostly sunny. Highs 69 to 79. Light winds. .TUESDAY...Mostly clear. Lows in the upper 50s. Highs 72 to 82. .WEDNESDAY...Mostly clear. Lows 54 to 64. Highs 73 to 83. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ654-281115- Central and South Puget Sound Lowlands- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers in the evening, then chance of showers after midnight. * Min temperature.......56-66. * Max humidity..........76-91 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........500-900 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the northwest after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...7 percent. .THURSDAY... * Sky/weather...........Partly sunny. Slight chance of showers in the morning. * Max temperature.......74-84. * Min humidity..........51-66 percent. * 20-foot winds.........Light winds becoming north around 3 mph in the afternoon. * Mixing height.........1100-2100 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...8 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-64. * Max humidity..........75-90 percent. * 20-foot winds.........North winds around 3 mph in the evening becoming light. * Mixing height.........400-1300 ft AGL. * Transport winds.......North around 5 mph shifting to the west after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......76-86. * Min humidity..........38-53 percent. * 20-foot winds.........Light winds becoming southwest around 4 mph in the afternoon. * Mixing height.........1100-2100 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds 3 to 5 mph. .SATURDAY...Partly sunny with slight chance of showers. Highs in the upper 70s. Southwest winds 3 to 6 mph. .SATURDAY NIGHT...Partly cloudy with slight chance of showers. Lows in the upper 50s. Southwest winds around 3 mph. .SUNDAY...Partly sunny. Slight chance of showers in the morning. Highs in the mid 70s. Light winds. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest winds around 3 mph. .LABOR DAY...Mostly sunny. Highs 74 to 84. Light winds. .TUESDAY...Mostly clear. Lows in the upper 50s. Highs 77 to 87. .WEDNESDAY...Mostly clear. Lows 55 to 65. Highs in the lower 80s. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ655-281115- Black Hills and Southwest Interior Lowlands- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers through the night. Patchy fog after midnight. * Min temperature.......55-65. * Max humidity..........77-92 percent. * 20-foot winds.........West winds up to 3 mph. * Mixing height.........600-1000 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......75-85. * Min humidity..........48-63 percent. * 20-foot winds.........Light winds. * Mixing height.........700 ft AGL increasing to 2800 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy fog after midnight. * Min temperature.......54-64. * Max humidity..........73-88 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........600-1600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......78-88. * Min humidity..........40-55 percent. * 20-foot winds.........Light winds becoming west around 3 mph in the afternoon. * Mixing height.........700 ft AGL increasing to 2800 ft AGL in the afternoon. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .FRIDAY NIGHT...Partly cloudy. Lows 52 to 62. West winds around 3 mph in the evening becoming light. .SATURDAY...Partly sunny with slight chance of showers. Highs in the upper 70s. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Slight chance of showers in the evening. Patchy fog after midnight. Lows in the mid 50s. Light winds. .SUNDAY...Partly sunny. Patchy fog in the morning. Highs in the upper 70s. Light winds. .SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .LABOR DAY...Mostly sunny. Patchy fog in the morning. Highs in the lower 80s. Light winds. .TUESDAY...Mostly clear. Patchy fog. Lows 51 to 61. Highs in the mid 80s. .WEDNESDAY...Mostly clear. Lows 54 to 64. Highs in the mid 80s. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ656-281115- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of thunderstorms in the evening. Chance of showers through the night. * Min temperature.......57-67. * Max humidity..........79-94 percent. * 20-foot winds.........Light winds. * Mixing height.........900-1400 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........10 percent. * Chance of Lightning...12 percent. .THURSDAY... * Sky/weather...........Partly sunny. Chance of showers in the morning. Slight chance of showers and thunderstorms in the afternoon. * Max temperature.......71-81. * Min humidity..........55-70 percent. * 20-foot winds.........Light winds. * Mixing height.........1400-2400 ft AGL. * Transport winds.......Northeast around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........10 percent. * Chance of Lightning...13 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-67. * Max humidity..........76-91 percent. * 20-foot winds.........Light winds. * Mixing height.........900-1500 ft AGL. * Transport winds.......North around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-85. * Min humidity..........43-58 percent. * 20-foot winds.........Light winds becoming west around 3 mph in the afternoon. * Mixing height.........900 ft AGL increasing to 2900 ft AGL in the afternoon. * Transport winds.......Southeast around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .FRIDAY NIGHT...Partly cloudy. Lows 55 to 65. West winds around 3 mph shifting to the east after midnight. .SATURDAY...Mostly sunny. Slight chance of showers in the afternoon. Highs 75 to 85. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers after midnight. Lows in the upper 50s. Southwest winds around 3 mph. .SUNDAY...Partly sunny. Chance of showers in the morning, then slight chance of showers in the afternoon. Highs 69 to 79. Light winds. .SUNDAY NIGHT...Partly cloudy. Slight chance of showers in the evening. Lows 52 to 62. Light winds. .LABOR DAY...Mostly sunny. Highs 74 to 84. Light winds. .TUESDAY...Mostly clear. Lows 54 to 64. Highs 79 to 89. .WEDNESDAY...Mostly clear. Lows 57 to 67. Highs 80 to 90. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ657-281115- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 155 PM PDT Wed Aug 27 2025 .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of showers in the evening. Chance of showers after midnight. * Min temperature.......55-65. * Max humidity..........79-94 percent. * 20-foot winds.........Light winds. * Mixing height.........500-1200 ft AGL. * Transport winds.......West around 5 mph shifting to the northeast after midnight. * CWR (>0.25)...........5 percent. * Chance of Lightning...8 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Slight chance of showers in the morning. * Max temperature.......77-87. * Min humidity..........47-62 percent. * 20-foot winds.........Light winds. * Mixing height.........900 ft AGL increasing to 3100 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...10 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-64. * Max humidity..........76-91 percent. * 20-foot winds.........Light winds. * Mixing height.........600-1600 ft AGL. * Transport winds.......North around 5 mph shifting to the southwest after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......80-90. * Min humidity..........40-55 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........1200-2200 ft AGL. * Transport winds.......South around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY NIGHT...Partly cloudy. Lows 54 to 64. Light winds. .SATURDAY...Mostly sunny with slight chance of showers. Highs around 80. Light winds becoming west around 3 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then slight chance of showers after midnight. Patchy fog after midnight. Lows 53 to 63. Light winds. .SUNDAY...Partly sunny. Slight chance of showers in the morning. Patchy fog in the morning. Highs in the mid 70s. Light winds. .SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows 52 to 62. Light winds. .LABOR DAY...Mostly sunny. Patchy fog in the morning. Highs around 80. Light winds. .TUESDAY...Mostly clear. Patchy fog after midnight. Lows 53 to 63. Highs in the lower 80s. .WEDNESDAY...Mostly clear. Lows around 60. Highs in the mid 80s. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ658-281115- West Slopes of the North Cascades Generally above 1500 Feet- 155 PM PDT Wed Aug 27 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .Tonight... * Sky/weather...........Mostly cloudy. Chance of showers and slight chance of thunderstorms. * Min temperature.......57-67...except 52-62 ridges. * Max humidity..........79-94 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...West winds around 3 mph shifting to the southeast after midnight. * Mixing height.........600-800 ft AGL. * Transport winds.......West around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........20 percent. * Chance of Lightning...20 percent. * Freezing level........13000 Feet. .THURSDAY... * Sky/weather...........Partly sunny. Patchy dense fog in the morning. Chance of showers and slight chance of thunderstorms through the day. * Max temperature.......70-80...except 63-73 ridges. * Min humidity..........58-73 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 2 mph. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......East around 5 mph shifting to the southeast in the afternoon. * CWR (>0.25)...........15 percent. * Chance of Lightning...22 percent. * Freezing level........12500 Feet. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min temperature.......56-66...except 51-61 ridges. * Max humidity..........73-88 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the east around 5 mph after midnight. * Mixing height.........500-900 ft AGL. * Transport winds.......East around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...15 percent. * Freezing level........13000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. Slight chance of showers in the afternoon. * Max temperature.......75-85...except 67-77 ridges. * Min humidity..........41-56 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...East winds around 4 mph shifting to the west in the afternoon. * Mixing height.........500 ft AGL increasing to 3900 ft AGL in the afternoon. * Transport winds.......East around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...7 percent. * Freezing level........13000 Feet. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows 53 to 63. West winds around 4 mph shifting to the east around 5 mph after midnight. .SATURDAY...Mostly sunny. Slight chance of showers in the afternoon. Freezing level 13000 feet. Highs 72 to 82 valleys...66 to 76 ridges. East winds around 4 mph shifting to the west in the afternoon. .SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers after midnight. Freezing level 13000 feet. Lows 51 to 61. West winds around 3 mph. .SUNDAY...Partly sunny. Chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Freezing level 12500 feet. Highs 65 to 75 valleys...57 to 67 ridges. West winds around 3 mph. .SUNDAY NIGHT...Partly cloudy. Slight chance of showers and thunderstorms in the evening. Freezing level 13000 feet. Lows 52 to 62 valleys...in the lower 50s ridges. Northwest winds around 3 mph. .LABOR DAY...Warmer. Mostly sunny. Freezing level 13500 feet. Highs 71 to 81 valleys...64 to 74 ridges. North winds around 3 mph. .TUESDAY...Mostly clear. Freezing level 14500 feet. Lows 52 to 62. Highs 77 to 87 valleys...70 to 80 ridges. .WEDNESDAY...Mostly clear. Freezing level 14500 feet. Lows 55 to 65. Highs 77 to 87 valleys...69 to 79 ridges. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ WAZ659-281115- West Slopes of the Central Cascades Generally above 1500 Feet- 155 PM PDT Wed Aug 27 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .Tonight... * Sky/weather...........Mostly cloudy. Slight chance of thunderstorms in the evening. Chance of showers through the night. Haze after midnight. * Min temperature.......52-62. * Max humidity..........76-91 percent...except 71-86 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 1 mph. * Ridges/upr slopes...Light winds. * Mixing height.........500-900 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........5 percent. * Chance of Lightning...13 percent. * Freezing level........12500 Feet. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. Slight chance of showers through the day. Slight chance of thunderstorms in the afternoon. * Max temperature.......73-83...except 64-74 ridges. * Min humidity..........46-61 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph. * Ridges/upr slopes...Light winds becoming west around 3 mph in the afternoon. * Mixing height.........800 ft AGL increasing to 3800 ft AGL in the afternoon. * Transport winds.......South around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...14 percent. * Freezing level........12500 Feet. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......52-62. * Max humidity..........72-87 percent...except 64-79 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds becoming southeast around 4 mph after midnight. * Mixing height.........500-1500 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. * Freezing level........13000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......77-87...except 69-79 ridges. * Min humidity..........39-54 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...East winds around 4 mph shifting to the west around 3 mph in the afternoon. * Mixing height.........400 ft AGL increasing to 4000 ft AGL in the afternoon. * Transport winds.......Southeast around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........13500 Feet. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows 53 to 63. Northwest winds around 3 mph shifting to the east after midnight. .SATURDAY...Mostly sunny. Slight chance of showers in the afternoon. Freezing level 13000 feet. Highs 71 to 81 valleys...64 to 74 ridges. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers after midnight. Freezing level 13000 feet. Lows 49 to 59. West winds around 3 mph. .SUNDAY...Mostly sunny. Slight chance of showers in the morning. Freezing level 13000 feet. Highs 66 to 76 valleys...59 to 69 ridges. Light winds. .SUNDAY NIGHT...Partly cloudy. Freezing level 13000 feet. Lows 47 to 57. Light winds. .LABOR DAY...Mostly sunny. Freezing level 13500 feet. Highs 71 to 81 valleys...64 to 74 ridges. Light winds. .TUESDAY...Mostly clear. Freezing level 14000 feet. Lows 52 to 62. Highs 76 to 86 valleys...70 to 80 ridges. .WEDNESDAY...Mostly clear. Freezing level 14500 feet. Lows 55 to 65. Highs 77 to 87 valleys...70 to 80 ridges. .8 TO 14 day Outlook for Sep 04 - 10 2025 Above normal temperatures and above normal precipitation. $$ www.weather.gov/seattle