Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

46°F

8°C

Humidity 75%
Wind Speed N 9 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 21 Mar 01:35 AM PDT
Extended Forecast for

Renton WA

Flood Watch March 21, 01:56am until March 21, 05:00pm
Flood Warning March 21, 01:56am until March 22, 01:23am
Click here for hazard details and duration
Flood Watch
Flood Warning
  •  
    Flood Watch March 21, 01:56am until March 21, 05:00pm
    Flood Warning March 21, 01:56am until March 22, 01:23am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49. North wind around 6 mph becoming calm  in the morning.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 38. Southeast wind 3 to 6 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A slight chance of rain and snow before 11am.  Partly sunny, with a high near 52. South southeast wind around 5 mph becoming light and variable.  Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after 11pm.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 54.

    High: 54 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. North wind around 6 mph.
Saturday
Partly sunny, with a high near 49. North wind around 6 mph becoming calm in the morning.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 38. Southeast wind 3 to 6 mph.
Sunday
A slight chance of rain and snow before 11am. Partly sunny, with a high near 52. South southeast wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 36. North northwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 52.
Monday Night
A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 41.
Tuesday
Rain. Cloudy, with a high near 54.
Tuesday Night
Rain. Mostly cloudy, with a low around 40.
Wednesday
Rain. Mostly cloudy, with a high near 51.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 36.
Friday
A slight chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Renton WA
 47.48°N 122.19°W (Elev. 200 ft)
11:27 pm PDT Mar 20, 2026
1am PDT Mar 21, 2026-6pm PDT Mar 27, 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