Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

64°F

18°C

Humidity 42%
Wind Speed S 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 19 Aug 06:05 AM MDT
Extended Forecast for

3 Miles E Meridian ID

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

    Today: Sunny and hot, with a high near 96. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 62. North northwest wind 5 to 7 mph becoming calm.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. South southeast wind 5 to 7 mph becoming west northwest in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66. North northwest wind 5 to 9 mph becoming east southeast after midnight.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 102. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 96. Calm wind becoming north northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 62. North northwest wind 5 to 7 mph becoming calm.
Thursday
Sunny and hot, with a high near 100. South southeast wind 5 to 7 mph becoming west northwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 66. North northwest wind 5 to 9 mph becoming east southeast after midnight.
Friday
Partly sunny and hot, with a high near 102. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 69.
Saturday
Mostly sunny and hot, with a high near 95.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny and hot, with a high near 93.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Meridian ID
 43.6°N 116.33°W (Elev. 2677 ft)
3:53 am MDT Aug 19, 2026
6am MDT Aug 19, 2026-6pm MDT Aug 25, 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