Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

36°F

2°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 12 Feb 02:15 AM PST
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 52 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after 4am.  Mostly cloudy, with a low around 42. South wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain, mainly after 10am.  High near 48. South wind 3 to 6 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm.  Low around 40. South wind around 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A 40 percent chance of rain.  Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow after 4am.  Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 42. South wind around 6 mph.
Friday
Rain, mainly after 10am. High near 48. South wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain, mainly before 10pm. Low around 40. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
A slight chance of rain and snow after 4am. Partly cloudy, with a low around 33.
Washington's Birthday
A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 47.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 47.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 38.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
1:26 am PST Feb 12, 2026
2am PST Feb 12, 2026-6pm PST Feb 18, 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