Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

Clear

93°F

34°C

Humidity 9%
Wind Speed NW 3 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 01 Aug 08:00 PM MDT
Extended Forecast for

Riverton WY

Heat Advisory August 1, 08:20pm until August 2, 10:00pm
Red Flag Warning August 2, 01:00pm until August 2, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
  •  
    Heat Advisory August 1, 08:20pm until August 2, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • Tonight

    Low: 61 °F

    Patchy Smoke

  • Sunday

    Sunday: Widespread smoke, mainly after 3pm. Mostly sunny and hot, with a high near 102. Breezy, with a light and variable wind becoming west 15 to 20 mph in the afternoon.

    High: 102 °F

    Smoke and
    Breezy

  • Sunday Night

    Sunday Night: Widespread smoke, mainly between 10pm and midnight. Mostly clear, with a low around 60. Breezy, with a west wind 12 to 17 mph becoming south southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 60 °F

    Smoke and
    Breezy

  • Monday

    Monday: Sunny, with a high near 83. Breezy, with a north northeast wind 13 to 21 mph, with gusts as high as 30 mph.

    High: 83 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. Breezy, with a northeast wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.

    Low: 51 °F

    Clear and
    Breezy then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. East wind 6 to 9 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. North wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Tonight
Patchy smoke before 3am. Partly cloudy, with a low around 61. West wind 6 to 9 mph.
Sunday
Widespread smoke, mainly after 3pm. Mostly sunny and hot, with a high near 102. Breezy, with a light and variable wind becoming west 15 to 20 mph in the afternoon.
Sunday Night
Widespread smoke, mainly between 10pm and midnight. Mostly clear, with a low around 60. Breezy, with a west wind 12 to 17 mph becoming south southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Monday
Sunny, with a high near 83. Breezy, with a north northeast wind 13 to 21 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 51. Breezy, with a northeast wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Tuesday
Sunny, with a high near 84. East wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 53. North wind 9 to 13 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
7:48 pm MDT Aug 1, 2026
8pm MDT Aug 1, 2026-6pm MDT Aug 8, 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