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.

Clear

46°F

8°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 09 Jan 06:20 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. South southeast wind 5 to 8 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 50. South wind around 8 mph.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain likely. Cloudy, with a low around 43. Southeast wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 48. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 45. South wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • Monday

    Monday: Rain. High near 52. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. South southeast wind 5 to 8 mph.
Saturday
A 30 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 50. South wind around 8 mph.
Saturday Night
Rain likely. Cloudy, with a low around 43. Southeast wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 48. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 45. South wind 7 to 9 mph. 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 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
Last Update:
3:03 pm PST Jan 9, 2026
Forecast Valid:
6pm PST Jan 9, 2026-6pm PST Jan 16, 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