National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Afton WY (KAFO)

Lat: 42.71133°NLon: 110.94217°WElev: 6201.0ft.

Mostly Cloudy

81°F

27°C

Humidity 39%
Wind Speed NNW 5 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 31 Jul 03:15 PM MDT
Extended Forecast for

Afton WY

Heat Advisory August 1, 12:00pm until August 2, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 90. West northwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 49. North northwest wind 6 to 11 mph becoming light and variable after midnight.

    Low: 49 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny, with a high near 93. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.

    High: 93 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: Patchy smoke between 8pm and 9pm. Partly cloudy, with a low around 53. West southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 53 °F

    Patchy Smoke
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 92. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. West northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 90. West northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight
Patchy smoke. Mostly clear, with a low around 49. North northwest wind 6 to 11 mph becoming light and variable after midnight.
Saturday
Patchy smoke. Sunny, with a high near 93. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Patchy smoke between 8pm and 9pm. Partly cloudy, with a low around 53. West southwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 92. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 48. West northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Monday
Sunny, with a high near 83. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Clear, with a low around 41.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Afton WY
 42.71°N 110.95°W (Elev. 6194 ft)
Last Update:
3:32 pm MDT Jul 31, 2026
Forecast Valid:
3pm MDT Jul 31, 2026-6pm MDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation