Zone Forecast Product
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
879
FPUS56 KEKA 180837
ZFPEKA
Zone Forecast Product for California
National Weather Service Eureka CA
136 AM PDT Tue Aug 18 2026
This is an average forecast over a large and geographically diverse
area. For a specific forecast for your location...please refer to
the point and click forecast on our webpage at:
www.weather.gov/eureka.
Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Wednesday.
CAZ101-190200-
Coastal Del Norte-
Including the cities of Ft Dick, Crescent City, and Smith River
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy until early afternoon then becoming mostly
sunny. Patchy fog in the morning. Highs 63 to 77. Light winds
becoming west around 5 mph in the afternoon.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Patchy fog overnight. Lows 49 to 59. Southwest wind
around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning then clearing. Patchy
fog in the morning. Highs 63 to 75. Light winds becoming west
around 5 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly cloudy. Patchy fog. Lows 47 to 57.
Southwest wind around 5 mph.
.THURSDAY...Mostly cloudy. Areas of fog. Highs 60 to 70. West
wind around 5 mph.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly cloudy. Areas of
fog. Lows 45 to 55. Highs 58 to 70.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. Patchy fog. Highs 61 to 71.
.SATURDAY NIGHT...Partly cloudy. Patchy fog. Lows 48 to 58.
.SUNDAY...Mostly cloudy in the morning then becoming partly
cloudy. Patchy fog. Highs 63 to 73.
.SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Patchy fog. Lows 47 to 57.
.MONDAY...Mostly cloudy. Patchy fog. Highs 60 to 70.
&&
TEMPERATURE / PRECIPITATION
Crescent City 64 53 63 / 0 0 0
Klamath 67 54 66 / 0 0 0
$$
CAZ102-190200-
Interior Del Norte-
Including the city of Gasquet
136 AM PDT Tue Aug 18 2026
.TODAY...Sunny. Highs 77 to 92.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 54 to 64.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
76 to 91.
.WEDNESDAY NIGHT...Partly cloudy. Lows 52 to 62.
.THURSDAY...Mostly sunny. Highs 72 to 87.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Patchy valley fog.
Lows 49 to 59. Highs 72 to 87.
.FRIDAY NIGHT...Mostly clear. Patchy valley fog. Lows 45 to 55.
.SATURDAY THROUGH MONDAY...Mostly clear. Highs 72 to 87. Lows
48 to 58.
&&
TEMPERATURE / PRECIPITATION
Gasquet 88 55 85 / 0 0 0
$$
CAZ103-190200-
Northern Coastal Humboldt-
Including the cities of Eureka, Samoa, Arcata, Arcata Arpt,
Fieldbrook, Fernbridge, and Fortuna
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy until early afternoon then becoming partly
cloudy. Patchy fog in the morning. Highs 61 to 76. Northwest wind
around 10 mph.
.TONIGHT...Mostly cloudy. Patchy fog overnight. Lows 48 to 58.
West wind around 10 mph.
.WEDNESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Patchy fog in the morning. Highs 61 to 75. West wind
around 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Patchy fog. Lows 48 to 58.
Northwest wind around 10 mph.
.THURSDAY...Mostly cloudy. Patchy fog. Highs 61 to 73. Northwest
wind around 10 mph.
.THURSDAY NIGHT...Mostly cloudy. Patchy fog. Lows 48 to 58.
.FRIDAY...Mostly cloudy. Areas of fog. Highs 60 to 70.
.FRIDAY NIGHT THROUGH MONDAY...Mostly cloudy. Patchy fog. Lows
48 to 58. Highs 60 to 75.
&&
TEMPERATURE / PRECIPITATION
McKinleyville 63 53 63 / 0 0 0
Arcata 66 54 65 / 0 0 0
Eureka 63 54 63 / 0 0 0
Fortuna 67 54 66 / 0 0 0
$$
CAZ104-190200-
Southwestern Humboldt-
Including the cities of Honeydew, Petrolia, Briceland,
Ettersburg, Shelter Cove, and Whitethorn
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly sunny. Highs 79 to 94. North wind 5 to 15 mph.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 52 to 62. North wind 5 to 15 mph.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
77 to 92. North wind up to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 61. North wind
around 10 mph.
.THURSDAY...Partly cloudy. Highs 74 to 89. Northwest wind around
10 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows 49 to 59.
Highs 74 to 89.
.SATURDAY NIGHT...Mostly clear. Lows 50 to 60.
.SUNDAY...Mostly sunny. Highs 75 to 90.
.SUNDAY NIGHT...Mostly clear. Lows 50 to 60.
.MONDAY...Mostly sunny. Highs 71 to 86.
&&
TEMPERATURE / PRECIPITATION
Honeydew 87 53 85 / 0 0 0
$$
CAZ105-190200-
Northeastern Interior Humboldt-
Including the cities of Hoopa, Orleans, Weitchpec,
and Willow Creek
136 AM PDT Tue Aug 18 2026
.TODAY...Sunny. Patchy smoke in the morning. Highs 87 to 102.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 54 to 64.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
86 to 101.
.WEDNESDAY NIGHT...Partly cloudy. Lows 52 to 62.
.THURSDAY...Mostly sunny. Highs 83 to 98.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Patchy
valley fog. Lows 48 to 58. Highs 83 to 98.
.SATURDAY...Sunny. Patchy valley fog. Highs 77 to 92.
.SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 50 to 60.
Highs 83 to 98.
&&
TEMPERATURE / PRECIPITATION
Orleans 98 59 98 / 0 0 0
Hoopa 96 58 96 / 0 0 0
Willow Creek 98 58 98 / 0 0 0
$$
CAZ106-190200-
Southeastern Interior Humboldt-
Including the cities of Bull Creek, Pepperwood, Shively,
Dinsmore, Bridgeville, Alderpoint, and Benbow
136 AM PDT Tue Aug 18 2026
.TODAY...Partly cloudy in the morning then clearing. Highs 81 to
96.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 53 to 63.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
80 to 95.
.WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 61.
.THURSDAY...Partly cloudy. Highs 76 to 91.
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Lows 48 to 58.
.FRIDAY...Partly cloudy in the morning then clearing. Patchy
valley fog. Highs 71 to 86.
.FRIDAY NIGHT...Mostly clear. Patchy valley fog. Lows 45 to 55.
.SATURDAY...Mostly sunny. Highs 73 to 88.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 48 to
58. Highs 77 to 92.
.MONDAY...Mostly sunny. Highs 74 to 89.
&&
TEMPERATURE / PRECIPITATION
Garberville 93 55 92 / 0 0 0
$$
CAZ108-190200-
Southern Trinity-
Including the cities of Forest Glen, Hayfork, Hyampom, Peanut,
Ruth, and Zenia
136 AM PDT Tue Aug 18 2026
.TODAY...Partly cloudy in the morning then clearing. Highs 83 to
98.
.TONIGHT...Partly cloudy. Lows 55 to 65.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
84 to 99.
.WEDNESDAY NIGHT...Mostly clear. Lows 54 to 64.
.THURSDAY...Mostly sunny. Highs 82 to 97.
.THURSDAY NIGHT...Partly cloudy. Lows 51 to 61.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 75 to 90. Lows
48 to 58.
.SATURDAY THROUGH SUNDAY...Clear. Highs 80 to 95. Lows 47 to 57.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 49 to 59. Highs
80 to 95.
&&
TEMPERATURE / PRECIPITATION
Hayfork 98 52 99 / 0 0 0
Ruth 94 52 93 / 0 0 0
$$
CAZ109-190200-
Coastal Mendocino-
Including the cities of Fort Bragg and Rockport
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy in the morning then clearing. Patchy fog
in the morning. Highs 73 to 88. West wind around 10 mph.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Patchy fog overnight. Lows 49 to 59. Northwest wind
around 10 mph.
.WEDNESDAY...Partly cloudy in the morning then clearing. Patchy
fog in the morning. Highs 71 to 86. Northwest wind around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Patchy fog. Lows 47 to 57.
Northwest wind around 10 mph.
.THURSDAY...Partly cloudy. Patchy fog. Highs 65 to 80. Northwest
wind around 10 mph.
.THURSDAY NIGHT...Mostly cloudy. Areas of fog. Lows 46 to 56.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Patchy fog. Highs 61 to
76. Lows 45 to 55.
.SATURDAY...Partly cloudy in the morning then clearing. Patchy
fog. Highs 68 to 83.
.SATURDAY NIGHT...Mostly clear. Patchy fog. Lows 47 to 57.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Patchy fog. Highs 69 to
84. Lows 47 to 57.
.MONDAY...Mostly sunny. Patchy fog. Highs 64 to 79.
&&
TEMPERATURE / PRECIPITATION
Fort Bragg 66 52 65 / 0 0 0
Point Arena 62 52 60 / 0 0 0
$$
CAZ110-190200-
Northwestern Interior Mendocino-
Including the cities of Potter Valley and Willits
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming sunny. Highs 86 to 101.
.TONIGHT...Partly cloudy. Lows 54 to 64.
.WEDNESDAY...Sunny. Highs 86 to 101.
.WEDNESDAY NIGHT...Mostly clear. Lows 52 to 62.
.THURSDAY...Mostly sunny. Highs 83 to 98.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 49 to 59. Highs
83 to 98.
.FRIDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 48 to 58. Highs
82 to 97.
&&
TEMPERATURE / PRECIPITATION
Leggett 87 56 86 / 0 0 0
Laytonville 91 56 91 / 0 0 0
Willits 88 54 87 / 0 0 0
$$
CAZ111-190200-
Northeastern Interior Mendocino-
Including the city of Covelo
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming sunny. Highs 88 to 103.
.TONIGHT...Partly cloudy. Lows 56 to 66.
.WEDNESDAY...Sunny. Highs 88 to 103.
.WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66.
.THURSDAY...Mostly sunny. Highs 86 to 101.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 54 to 64. Highs
86 to 101.
.FRIDAY NIGHT...Mostly clear. Lows 48 to 58.
.SATURDAY THROUGH SUNDAY...Clear. Highs 84 to 99. Lows 50 to 60.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 52 to 62. Highs
84 to 99.
&&
TEMPERATURE / PRECIPITATION
Covelo 95 57 95 / 0 0 0
$$
CAZ112-190200-
Southwestern Interior Mendocino-
Including the cities of Boonville, Philo, Comptche, and Yorkville
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming sunny. Patchy valley fog in the morning.
Highs 78 to 93.
.TONIGHT...Partly cloudy. Patchy valley fog overnight. Lows 51 to
61.
.WEDNESDAY...Sunny. Patchy valley fog in the morning. Highs 78 to
93.
.WEDNESDAY NIGHT...Partly cloudy. Patchy valley fog. Lows 49 to
59.
.THURSDAY...Partly cloudy. Patchy valley fog. Highs 76 to 91.
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Patchy valley fog. Lows 48 to 58.
.FRIDAY THROUGH SATURDAY...Partly cloudy. Patchy valley fog.
Highs 71 to 86. Lows 47 to 57.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Patchy
valley fog. Lows 48 to 58. Highs 73 to 88.
.MONDAY...Mostly sunny. Patchy valley fog. Highs 70 to 85.
&&
TEMPERATURE / PRECIPITATION
Boonville 90 55 88 / 0 0 0
$$
CAZ113-190200-
Southeastern Interior Mendocino-
Including the cities of Calpella, Hopland, Redwood Valley,
Talmage, and Ukiah
136 AM PDT Tue Aug 18 2026
.TODAY...Partly cloudy in the morning then clearing. Highs 83 to
98.
.TONIGHT...Partly cloudy. Lows 58 to 68.
.WEDNESDAY...Sunny. Highs 82 to 97.
.WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66.
.THURSDAY...Mostly sunny. Highs 79 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 54 to 64. Highs
79 to 94.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 49 to 59. Highs
75 to 90.
.SATURDAY NIGHT...Clear. Lows 53 to 63.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 79 to 94. Lows 53 to
63.
&&
TEMPERATURE / PRECIPITATION
Ukiah 95 59 95 / 0 0 0
$$
CAZ114-190200-
Northern Lake-
Including the city of Gravelly Valley Airport
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly sunny. Highs 85 to 100.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 59 to 69.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
86 to 101.
.WEDNESDAY NIGHT...Mostly clear. Lows 57 to 67.
.THURSDAY...Mostly sunny. Highs 84 to 99.
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Lows 56 to 66.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 77 to
92.
.FRIDAY NIGHT...Mostly clear. Lows 49 to 59.
.SATURDAY THROUGH SUNDAY...Clear. Highs 81 to 96. Lows 51 to 61.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 53 to 63. Highs
81 to 96.
&&
TEMPERATURE / PRECIPITATION
Lake Pillsbury 99 52 99 / 0 0 0
$$
CAZ116-190200-
Northwestern and Central Trinity-
Including the cities of Weaverville, Douglas City, Helena,
Junction City, Big Bar, Del Loma, and Burnt Ranch
136 AM PDT Tue Aug 18 2026
.TODAY...Sunny. Patchy smoke in the morning. Highs 91 to 106.
North wind around 5 mph shifting to the west in the afternoon.
.TONIGHT...Mostly clear in the evening then becoming mostly
cloudy. Patchy smoke in the evening. Lows 57 to 67. West wind
around 10 mph shifting to the north overnight.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
92 to 107. East wind around 5 mph shifting to the southwest in
the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66. Northwest wind
around 10 mph.
.THURSDAY...Mostly sunny. Highs 90 to 105. Southeast wind around
10 mph.
.THURSDAY NIGHT...Partly cloudy. Lows 54 to 64.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 83 to 98. Lows
51 to 61.
.SATURDAY THROUGH SUNDAY...Clear. Highs 87 to 102. Lows 50 to 60.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 52 to 62. Highs
87 to 102.
&&
TEMPERATURE / PRECIPITATION
Big Bar 101 59 103 / 0 0 0
Weaverville 98 60 99 / 0 0 0
$$
CAZ117-190200-
Northeastern Trinity-
Including the cities of Carrville and Trinity Center
136 AM PDT Tue Aug 18 2026
.TODAY...Sunny. Highs 85 to 100. North wind around 5 mph shifting
to the south in the afternoon.
.TONIGHT...Partly cloudy. Lows 56 to 66. West wind around 10 mph
shifting to the north overnight.
.WEDNESDAY...Sunny. Highs 85 to 100. Northeast wind around 5 mph
shifting to the south in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66. West wind around
10 mph.
.THURSDAY...Mostly sunny. Highs 82 to 97. Southeast wind around
10 mph.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 54 to 64. Highs
82 to 97.
.FRIDAY NIGHT...Mostly clear. Lows 48 to 58.
.SATURDAY THROUGH SUNDAY...Clear. Highs 79 to 94. Lows 49 to 59.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 51 to 61. Highs
79 to 94.
&&
TEMPERATURE / PRECIPITATION
Trinity Center 98 60 98 / 0 0 0
$$
CAZ118-190200-
Western Lake-
Including the cities of Finley, Knobcone Camp, Lakeport,
Soda Bay, Lucerne, Nice, and Saratoga Springs
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly sunny. Highs 87 to 97. Southwest wind around
5 mph.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 61 to 71. West wind around 10 mph.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
87 to 97. Light winds becoming south around 5 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 58 to 68. Northwest wind
around 10 mph.
.THURSDAY...Mostly sunny. Highs 84 to 94. West wind around
10 mph.
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Lows 56 to 66.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 78 to
88.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 50 to 60. Highs
78 to 90.
.SATURDAY NIGHT...Clear. Lows 55 to 65.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 93. Lows 55 to
65.
&&
TEMPERATURE / PRECIPITATION
Lakeport 92 61 93 / 0 0 0
$$
CAZ119-190200-
Southwestern Lake-
Including the cities of Kelseyville, Mount Konocti, Adams,
Anderson Springs, Cobb, Ettawa Springs, and Forest Lake
136 AM PDT Tue Aug 18 2026
.TODAY...Partly cloudy in the morning then clearing. Highs 84 to
96. Northeast wind around 5 mph shifting to the south in the
afternoon.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 61 to 71. West wind around 10 mph.
.WEDNESDAY...Sunny. Highs 85 to 97. Northeast wind around 5 mph
shifting to the south in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 60 to 70. West wind around
10 mph.
.THURSDAY...Mostly sunny. Highs 83 to 95. West wind around
10 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows 60 to 70.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 78 to
90.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 54 to 64. Highs
78 to 90.
.SATURDAY NIGHT...Clear. Lows 57 to 67.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 75 to 90. Lows 56 to
66.
$$
CAZ120-190200-
Eastern Lake-
Including the cities of Clearlake, Clearlake Park,
Hidden Valley Lake, and Middletown
136 AM PDT Tue Aug 18 2026
.TODAY...Mostly sunny. Highs 88 to 98. North wind around 5 mph
shifting to the southeast in the afternoon.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 60 to 70. West wind around 10 mph.
.WEDNESDAY...Partly cloudy in the morning then clearing. Highs
90 to 100. Northeast wind around 5 mph shifting to the south in
the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 59 to 69. West wind around
10 mph.
.THURSDAY...Mostly sunny. Highs 88 to 98. West wind around
10 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows 58 to 68.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 83 to
93.
.FRIDAY NIGHT...Mostly clear. Lows 52 to 62.
.SATURDAY AND SATURDAY NIGHT...Clear. Highs 83 to 93. Lows 54 to
64.
.SUNDAY...Sunny. Highs 84 to 94.
.SUNDAY NIGHT...Clear. Lows 54 to 64.
.MONDAY...Sunny. Highs 82 to 92.
&&
TEMPERATURE / PRECIPITATION
Middletown 94 57 95 / 0 0 0
Clearlake 96 61 97 / 0 0 0
$$