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

Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

98°F

37°C

Humidity 17%
Wind Speed N 0 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 10 Jul 04:53 PM MDT
Extended Forecast for

10 Miles E Weiser ID

Heat Advisory July 10, 05:02pm until July 11, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 10, 05:02pm until July 11, 09:00pm

    NOW until 9:00pm Sat

    Heat Advisory

  • Tonight

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 67. South southeast wind 5 to 7 mph becoming calm.

    Low: 67 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny and hot, with a high near 97. Light and variable wind.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 69. Light and variable wind becoming north northeast 5 to 7 mph.

    Low: 69 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Monday Night

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

    Low: 69 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 65. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 67. South southeast wind 5 to 7 mph becoming calm.
Sunday
Partly sunny and hot, with a high near 97. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 69. Light and variable wind becoming north northeast 5 to 7 mph.
Monday
Mostly sunny and hot, with a high near 99.
Monday Night
Mostly cloudy, with a low around 69.
Tuesday
Partly sunny and hot, with a high near 96.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Weiser ID
 44.27°N 116.79°W (Elev. 2595 ft)
Last Update:
12:29 pm MDT Jul 10, 2026
Forecast Valid:
5pm MDT Jul 10, 2026-6pm MDT Jul 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation