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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

75°F

24°C

Humidity 36%
Wind Speed NW 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Aug 10:00 PM MDT
Extended Forecast for

Boise ID

  • Tonight

    Tonight: Isolated showers and thunderstorms before midnight. Mostly clear, with a low around 64. Calm wind. Chance of precipitation is 20%.

    Low: 64 °F

    Isolated
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Northwest wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. West wind 5 to 7 mph becoming calm after midnight.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

Tonight
Isolated showers and thunderstorms before midnight. Mostly clear, with a low around 64. Calm wind. Chance of precipitation is 20%.
Monday
Sunny and hot, with a high near 95. Calm wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 66. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Clear, with a low around 63.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny and hot, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.62°N 116.19°W (Elev. 2792 ft)
Last Update:
3:05 pm MDT Aug 17, 2025
Forecast Valid:
10pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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