Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

66°F

19°C

Humidity 37%
Wind Speed SSW 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 20 Aug 06:53 AM MDT
Extended Forecast for

Boise ID

Heat Advisory August 20, 12:00pm until August 21, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Patchy smoke between 9am and noon. Increasing clouds and hot, with a high near 100. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 100 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 68. North northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 68 °F

    Decreasing
    Clouds

  • Friday

    Friday: Partly sunny and hot, with a high near 102. South southeast wind around 5 mph becoming calm.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 72. West wind 8 to 14 mph becoming east after midnight.

    Low: 72 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms.  Partly sunny and hot, with a high near 96. East southeast wind 7 to 10 mph becoming west southwest in the afternoon.

    High: 96 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

Today
Patchy smoke between 9am and noon. Increasing clouds and hot, with a high near 100. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 68. North northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Partly sunny and hot, with a high near 102. South southeast wind around 5 mph becoming calm.
Friday Night
Mostly cloudy, with a low around 72. West wind 8 to 14 mph becoming east after midnight.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 96. East southeast wind 7 to 10 mph becoming west southwest in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 61.
Monday
Mostly sunny and hot, with a high near 92.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny and hot, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.6°N 116.21°W (Elev. 2723 ft)
12:29 am MDT Aug 20, 2026
7am MDT Aug 20, 2026-6pm MDT Aug 26, 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