Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

Renton Municipal Airport (KRNT)

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

light rain,mist

52°F

11°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Last update 19 Mar 09:00 AM PDT
Extended Forecast for

2 Miles E Newcastle WA

Flood Watch March 19, 09:22am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 19, 09:22am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Today

    High: 54 °F

    Rain

  • Tonight

    Tonight: Rain.  Low around 51. South southwest wind 9 to 11 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Rain

  • Friday

    Friday: Rain.  High near 52. South southwest wind 13 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before 11pm, then a chance of showers after 11pm.  Mostly cloudy, with a low around 38. South southwest wind 8 to 17 mph becoming north northwest after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely
    then Chance
    Showers

  • Saturday

    Saturday: A chance of rain showers before 11am, then a slight chance of rain and snow showers between 11am and 2pm, then a slight chance of rain showers after 2pm.  Partly sunny, with a high near 46. Northeast wind around 7 mph becoming north northwest in the afternoon.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Today
Rain. High near 54. South southwest wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Low around 51. South southwest wind 9 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 52. South southwest wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely before 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 38. South southwest wind 8 to 17 mph becoming north northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain showers before 11am, then a slight chance of rain and snow showers between 11am and 2pm, then a slight chance of rain showers after 2pm. Partly sunny, with a high near 46. Northeast wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
A slight chance of showers after 11am. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
Rain. Cloudy, with a high near 50.
Tuesday Night
Rain. Mostly cloudy, with a low around 37.
Wednesday
Rain likely. Mostly cloudy, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
7:17 am PDT Mar 19, 2026
9am PDT Mar 19, 2026-6pm PDT Mar 25, 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