Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

82°F

28°C

Humidity 45%
Wind Speed NW 3 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Aug 02:35 PM PDT
Extended Forecast for

3 Miles E Newcastle WA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 80. Light west northwest wind.

    High: 80 °F

    Cloudy

  • Tonight

    Tonight: A 10 percent chance of rain after 5am.  Mostly cloudy, with a low around 58. Light west southwest wind becoming south 6 to 11 mph in the evening.

    Low: 58 °F

    Cloudy then
    Slight Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain between 10am and noon.  Cloudy, then gradually becoming mostly sunny, with a high near 71. South southwest wind 7 to 10 mph.

    High: 71 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain between midnight and 1am.  Increasing clouds, with a low around 56. West southwest wind 5 to 7 mph.  Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Partly sunny, with a high near 71. South wind 5 to 7 mph becoming calm  in the morning.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 80. Light west northwest wind.
Tonight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 58. Light west southwest wind becoming south 6 to 11 mph in the evening.
Saturday
A 40 percent chance of rain between 10am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 71. South southwest wind 7 to 10 mph.
Saturday Night
A slight chance of rain between midnight and 1am. Increasing clouds, with a low around 56. West southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 71. South wind 5 to 7 mph becoming calm in the morning.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
A slight chance of rain. Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
1:55 pm PDT Aug 21, 2026
2pm PDT Aug 21, 2026-6pm PDT Aug 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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