Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

95°F

35°C

Humidity 16%
Wind Speed SSE 10 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 26 Aug 01:00 PM MDT
Extended Forecast for

Boise ID

  • This Afternoon

    This Afternoon: Mostly sunny and hot, with a high near 97. South wind around 6 mph becoming west.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly cloudy, with a low around 70. Calm wind becoming east southeast 5 to 7 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 9am.  Mostly sunny and hot, with a high near 95. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 95 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 66. West wind around 6 mph becoming calm  in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Friday

    Friday: A 30 percent chance of showers after noon.  Mostly cloudy, with a high near 84. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 84 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers.  Mostly sunny, with a high near 85.

    High: 85 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 97. South wind around 6 mph becoming west.
Tonight
Mostly cloudy, with a low around 70. Calm wind becoming east southeast 5 to 7 mph.
Thursday
A 30 percent chance of showers, mainly before 9am. Mostly sunny and hot, with a high near 95. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 66. West wind around 6 mph becoming calm in the evening.
Friday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 84. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 54.
Monday
A 20 percent chance of showers. Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.6°N 116.18°W (Elev. 2776 ft)
11:13 am MDT Aug 26, 2026
1pm MDT Aug 26, 2026-6pm MDT Sep 1, 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