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

Fire Weather Concerns in the Intermountain West into the Plains

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the Plains though early this week. Another elevated risk is possible across the central Appalachians. A rapid warm-up is in the forecast beginning Monday across the central and eastern U.S.. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

39°F

4°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 29 Mar 11:53 PM PDT
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 48. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. North wind 3 to 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. Light and variable wind becoming east around 5 mph in the afternoon.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 41. South wind 3 to 6 mph.

    Low: 41 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain. High near 50. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 11pm. Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain then
    Chance Rain

  • Thursday

    Thursday: A chance of rain. Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. Calm wind.
Monday
Sunny, with a high near 48. Calm wind becoming north 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 34. North wind 3 to 7 mph.
Tuesday
Partly sunny, with a high near 54. Light and variable wind becoming east around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 41. South wind 3 to 6 mph.
Wednesday
Rain. High near 50. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain, mainly before 11pm. Low around 39. Chance of precipitation is 90%.
Thursday
A chance of rain. Partly sunny, with a high near 51.
Thursday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
11:27 pm PDT Mar 29, 2026
Forecast Valid:
12am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
Forecast Discussion
 
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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