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

97°F

36°C

Humidity 9%
Wind Speed E 8 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 01 Aug 02:35 PM MDT
Extended Forecast for

Riverton WY

Heat Advisory August 1, 02:52pm 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, 02:52pm until August 2, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 101 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke before 3am. Partly cloudy, with a low around 61. South southwest wind 6 to 8 mph.

    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 13 to 18 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 6 to 16 mph becoming east after midnight. Winds could gust as high as 26 mph.

    Low: 60 °F

    Smoke and
    Breezy

  • Monday

    Monday: Sunny, with a high near 84. Breezy, with a north northeast wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 84 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. Breezy, with a northeast wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 51 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. East northeast wind 6 to 9 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Patchy smoke. Sunny and hot, with a high near 101. Light and variable wind becoming south 5 to 7 mph.
Tonight
Patchy smoke before 3am. Partly cloudy, with a low around 61. South southwest wind 6 to 8 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 13 to 18 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 6 to 16 mph becoming east after midnight. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 84. Breezy, with a north northeast wind 13 to 20 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 51. Breezy, with a northeast wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Tuesday
Sunny, with a high near 85. East northeast wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
2:03 pm MDT Aug 1, 2026
2pm MDT Aug 1, 2026-6pm MDT Aug 7, 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