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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

81°F

27°C

Humidity 30%
Wind Speed SE 13 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 28 Aug 08:30 PM MDT
Extended Forecast for

Boise ID

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Patchy smoke between 1am and 3am. Mostly cloudy, with a low around 65. Southeast wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 85. Southeast wind 5 to 8 mph becoming west in the afternoon.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 9pm. Patchy smoke between 1am and 2am. Mostly cloudy, with a low around 53. West northwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 53 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Sunday

    Sunday: Sunny, with a high near 78. West northwest wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Patchy smoke between 1am and 3am. Mostly cloudy, with a low around 65. Southeast wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 85. Southeast wind 5 to 8 mph becoming west in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before 9pm. Patchy smoke between 1am and 2am. Mostly cloudy, with a low around 53. West northwest wind 9 to 11 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 78. West northwest wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 60.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 78.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 50.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.61°N 116.25°W (Elev. 2726 ft)
Last Update:
2:31 pm MDT Aug 28, 2026
Forecast Valid:
8pm MDT Aug 28, 2026-6pm MDT Sep 4, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation