Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Clear

61°F

16°C

Humidity 59%
Wind Speed NNW 8 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Apr 11:35 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Partly sunny, with a high near 75. East wind 5 to 7 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 73. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. West southwest wind 5 to 7 mph becoming south after midnight.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 59. Southwest wind 3 to 6 mph.

    High: 59 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely.  Mostly cloudy, with a low around 49. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 11pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 75. East wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 73. Light and variable wind becoming west around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 50. West southwest wind 5 to 7 mph becoming south after midnight.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 59. Southwest wind 3 to 6 mph.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 47.
Thursday
Partly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
11:26 am PDT Apr 19, 2026
11am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database