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 >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

54°F

12°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Mar 03:20 PM PDT
Extended Forecast for

2 Miles NNE Newcastle WA

Flood Watch March 19, 03:43pm until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 19, 03:43pm until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • This Afternoon

    High: 55 °F

    Rain

  • Tonight

    Tonight: Rain.  Low around 52. South wind around 8 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Friday

    Friday: Rain, mainly before 3pm.  High near 55. South southwest wind around 10 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 40. South southwest wind 5 to 10 mph becoming north northeast in the evening.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 11am.  Partly sunny, with a high near 48. Northeast wind around 5 mph becoming north northwest in the afternoon.

    High: 48 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm, then a slight chance of rain and snow.  Partly cloudy, with a low around 36. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 11am, then a slight chance of rain.  Partly sunny, with a high near 52. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 52 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Rain. High near 55. South wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Low around 52. South wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 3pm. High near 55. South southwest wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 40. South southwest wind 5 to 10 mph becoming north northeast in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 40 percent chance of rain, mainly before 11am. Partly sunny, with a high near 48. Northeast wind around 5 mph becoming north northwest in the afternoon.
Saturday Night
A slight chance of rain before 11pm, then a slight chance of rain and snow. Partly cloudy, with a low around 36. Chance of precipitation is 20%.
Sunday
A chance of rain and snow before 11am, then a slight chance of rain. Partly sunny, with a high near 52. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 37.
Monday
Mostly cloudy, with a high near 52.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. Cloudy, with a high near 51.
Tuesday Night
Rain. Cloudy, with a low around 40.
Wednesday
Rain. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Newcastle WA
 47.57°N 122.15°W (Elev. 397 ft)
2:36 pm PDT Mar 19, 2026
3pm PDT Mar 19, 2026-6pm PDT Mar 26, 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