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

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

95°F

35°C

Humidity 17%
Wind Speed NNW 10 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 12 Jul 02:05 PM MDT
Extended Forecast for

3 Miles NNW Payette ID

Heat Advisory July 13, 02:00pm until July 13, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Mostly cloudy and hot, with a high near 96. North wind around 6 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Northeast wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny and hot, with a high near 99. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 71. East wind 5 to 7 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy and hot, with a high near 95. Calm wind becoming east northeast around 5 mph.

    High: 95 °F

    Hot

  • Tuesday Night

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

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

Detailed Forecast

This Afternoon
Mostly cloudy and hot, with a high near 96. North wind around 6 mph.
Tonight
Mostly cloudy, with a low around 68. Northeast wind around 6 mph becoming calm in the evening.
Monday
Partly sunny and hot, with a high near 99. Calm wind becoming east 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 71. East wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly cloudy and hot, with a high near 95. Calm wind becoming east northeast around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Payette ID
 44.12°N 116.93°W (Elev. 2192 ft)
Last Update:
12:29 pm MDT Jul 12, 2026
Forecast Valid:
2pm MDT Jul 12, 2026-6pm MDT Jul 18, 2026
 
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