Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

55°F

13°C

Humidity 50%
Wind Speed ESE 6 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 09 Sep 02:35 AM MDT
Extended Forecast for

Boise ID

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 55. Northwest wind around 6 mph becoming calm.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 48. Chance of precipitation is 50%.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Wednesday
Sunny, with a high near 82. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 55. Northwest wind around 6 mph becoming calm.
Thursday
Sunny, with a high near 87. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. West northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 79.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Patchy fog. Otherwise, sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.6°N 116.18°W (Elev. 2776 ft)
12:32 am MDT Sep 9, 2026
2am MDT Sep 9, 2026-6pm MDT Sep 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database