Severe Thunderstorms and Heavy Rain in the Mississippi Valley; Critical Fire Weather in the Southern Plains

Severe thunderstorms will persist tonight across the Middle Mississippi Valley, producing damaging winds, large to very large hail and several tornadoes. Low humidity and windy conditions will continue to produce elevated to critical fire weather conditions across the southern High Plains into midweek. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

55°F

13°C

Humidity 62%
Wind Speed SSW 6 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 27 Apr 09:15 PM PDT
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Increasing clouds, with a low around 46. South wind 7 to 9 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. South wind 6 to 8 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. South wind 7 to 9 mph.
Tuesday
Mostly cloudy, with a high near 56. South wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 65. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 47. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
11:27 am PDT Apr 27, 2026
9pm PDT Apr 27, 2026-6pm PDT May 4, 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