National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

52°F

11°C

Humidity 62%
Wind Speed SSW 3 MPH
Barometer 30.48 in (1032.17 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 09 Jan 11:35 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: Partly sunny, with a high near 48. South southeast wind 3 to 6 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southeast wind 3 to 6 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 50. South southeast wind around 6 mph.

    High: 50 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Rain likely. Cloudy, with a low around 42. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely. Patchy fog before 11am, then patchy fog after noon. Otherwise, cloudy, with a high near 48. South wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Rain. Patchy fog before 11pm. Low around 45. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Rain. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain Likely

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 48. South southeast wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 40. Southeast wind 3 to 6 mph.
Saturday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 50. South southeast wind around 6 mph.
Saturday Night
Rain likely. Cloudy, with a low around 42. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain likely. Patchy fog before 11am, then patchy fog after noon. Otherwise, cloudy, with a high near 48. South wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Patchy fog before 11pm. Low around 45. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain. High near 52. Chance of precipitation is 80%.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49.
Tuesday
Mostly cloudy, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
7:00 am PST Jan 9, 2026
Forecast Valid:
11am PST Jan 9, 2026-6pm PST Jan 15, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation