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

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Clear

65°F

18°C

Humidity 39%
Wind Speed SSW 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 19 Aug 05:53 AM MDT
Extended Forecast for

5 Miles E Weiser 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 before 10am. Sunny and hot, with a high near 97. North wind around 6 mph becoming calm  in the morning.

    High: 97 °F

    Patchy Smoke
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind becoming north northeast 5 to 8 mph in the evening.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. Southwest wind 5 to 8 mph becoming northeast in the evening.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 102. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 96.

    High: 96 °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
Patchy smoke before 10am. Sunny and hot, with a high near 97. North wind around 6 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 63. Calm wind becoming north northeast 5 to 8 mph in the evening.
Thursday
Sunny and hot, with a high near 101. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. Southwest wind 5 to 8 mph becoming northeast in the evening.
Friday
Partly sunny and hot, with a high near 102. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 68.
Saturday
Mostly sunny and hot, with a high near 96.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Mostly clear, 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Weiser ID
 44.24°N 116.87°W (Elev. 2198 ft)
3:53 am MDT Aug 19, 2026
6am MDT Aug 19, 2026-6pm MDT Aug 25, 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