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

79°F

26°C

Humidity 18%
Wind Speed W 9 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 02 Aug 12:20 AM MDT
Extended Forecast for

Riverton WY

Heat Advisory August 2, 12:39am 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 2, 12:39am until August 2, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • Overnight

    Low: 61 °F

    Patchy Smoke

  • Sunday

    Sunday: Widespread smoke, mainly after 3pm. Sunny and hot, with a high near 102. Breezy, with a light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 102 °F

    Smoke and
    Breezy

  • Sunday Night

    Sunday Night: Widespread smoke, mainly between 10pm and midnight. Mostly clear, with a low around 61. Breezy, with a west wind 6 to 16 mph becoming north northeast after midnight. Winds could gust as high as 24 mph.

    Low: 61 °F

    Smoke and
    Breezy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 84. Breezy, with a north northeast wind 13 to 21 mph, with gusts as high as 29 mph.

    High: 84 °F

    Becoming
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Breezy, with a north northeast wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 53 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. East wind 5 to 8 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Breezy, with a north wind 15 to 20 mph becoming light and variable  after midnight. Winds could gust as high as 30 mph.

    Low: 54 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Overnight
Patchy smoke before 3am. Partly cloudy, with a low around 61. West southwest wind 6 to 10 mph.
Sunday
Widespread smoke, mainly after 3pm. Sunny and hot, with a high near 102. Breezy, with a light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Widespread smoke, mainly between 10pm and midnight. Mostly clear, with a low around 61. Breezy, with a west wind 6 to 16 mph becoming north northeast after midnight. Winds could gust as high as 24 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 84. Breezy, with a north northeast wind 13 to 21 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 53. Breezy, with a north northeast wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 83. East wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 54. Breezy, with a north wind 15 to 20 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 94.
Thursday Night
Clear, with a low around 59.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny and hot, with a high near 97.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
12:31 am MDT Aug 2, 2026
12am MDT Aug 2, 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