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

Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Boise Air Terminal (KBOI)

Lat: 43.56704°NLon: 116.24053°WElev: 2822.0ft.

haze

68°F

20°C

Humidity 52%
Wind Speed ESE 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 50°F (10°C)
Visibility 6.00 mi
Last update 31 Jul 06:00 AM MDT
Extended Forecast for

Boise ID

  • Today

    Today: Areas of smoke. Sunny and hot, with a high near 102. Light and variable wind becoming west northwest around 5 mph.

    High: 102 °F

    Areas Smoke

  • Tonight

    Tonight: Patchy smoke before 7pm, then patchy smoke after 8pm. Mostly clear, with a low around 68. Calm wind becoming south southeast around 5 mph.

    Low: 68 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny and hot, with a high near 102. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 102 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: Widespread smoke, mainly between 9pm and 10pm. Partly cloudy, with a low around 61. West wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Smoke

  • Sunday

    Sunday: Patchy smoke before 8am, then patchy smoke after 2pm. Sunny, with a high near 88. West northwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 88 °F

    Patchy Smoke

  • Sunday Night

    Sunday Night: Patchy smoke before 7pm. Clear, with a low around 56.

    Low: 56 °F

    Patchy Smoke
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

Today
Areas of smoke. Sunny and hot, with a high near 102. Light and variable wind becoming west northwest around 5 mph.
Tonight
Patchy smoke before 7pm, then patchy smoke after 8pm. Mostly clear, with a low around 68. Calm wind becoming south southeast around 5 mph.
Saturday
Patchy smoke. Sunny and hot, with a high near 102. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Widespread smoke, mainly between 9pm and 10pm. Partly cloudy, with a low around 61. West wind 8 to 11 mph, with gusts as high as 23 mph.
Sunday
Patchy smoke before 8am, then patchy smoke after 2pm. Sunny, with a high near 88. West northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Patchy smoke before 7pm. Clear, with a low around 56.
Monday
Sunny, with a high near 87.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny and hot, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.6°N 116.21°W (Elev. 2723 ft)
Last Update:
12:29 am MDT Jul 31, 2026
Forecast Valid:
6am MDT Jul 31, 2026-6pm MDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation