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 >

Current conditions at

Ririe (ITD18)

Lat: 43.6111°NLon: 111.70531°WElev: 5106.0ft.

NA

90°F

32°C

Humidity 20%
Wind Speed NE 4 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility 1.24 mi
Heat Index86°F (30°C)
Last update 31 Jul 01:00 PM MDT
Extended Forecast for

17 Miles SSW Irwin ID

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. West southwest wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southwest wind 6 to 11 mph becoming east after midnight.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. East southeast wind 9 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West wind 7 to 13 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. South wind 5 to 10 mph becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. West southwest wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 55. Southwest wind 6 to 11 mph becoming east after midnight.
Saturday
Sunny, with a high near 90. East southeast wind 9 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 58. West wind 7 to 13 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 85. South wind 5 to 10 mph becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSW Irwin ID
 43.17°N 111.39°W (Elev. 7096 ft)
Last Update:
12:30 pm MDT Jul 31, 2026
Forecast Valid:
1pm MDT Jul 31, 2026-6pm MDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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