Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

52°F

11°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 01 Apr 12:00 AM PDT
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Rain, mainly after 2am.  Low around 44. South wind around 5 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 52. Southeast wind around 6 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 9pm.  Low around 41. South wind 5 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain then
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 54. South southwest wind around 6 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 42. South wind around 6 mph.

    Low: 42 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain, mainly after 2am. Low around 44. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. High near 52. Southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain, mainly before 9pm. Low around 41. South wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 54. South southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 42. South wind around 6 mph.
Friday
Partly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.56°N 122.18°W (Elev. 207 ft)
11:26 pm PDT Mar 31, 2026
12am PDT Apr 1, 2026-6pm PDT Apr 7, 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