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 >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

73°F

23°C

Humidity 33%
Wind Speed WNW 9 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 12 Jul 07:53 AM MDT
Extended Forecast for

2 Miles NNE Ontario OR

  • Today

    Today: Mostly cloudy and hot, with a high near 96. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. North wind 5 to 8 mph becoming calm.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny and hot, with a high near 98. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 70. Northwest wind 6 to 13 mph.

    Low: 70 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny and hot, with a high near 98. West southwest wind 6 to 10 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms then
    Partly 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 66.

    Low: 66 °F

    Mostly Clear

  • Thursday

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

    High: 99 °F

    Hot

Detailed Forecast

Today
Mostly cloudy and hot, with a high near 96. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 67. North wind 5 to 8 mph becoming calm.
Monday
Partly sunny and hot, with a high near 98. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 70. Northwest wind 6 to 13 mph.
Tuesday
Partly sunny and hot, with a high near 98. West southwest wind 6 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 67.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny and hot, with a high near 99.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Sunny and hot, with a high near 100.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Ontario OR
 44.06°N 116.95°W (Elev. 2100 ft)
Last Update:
12:30 am MDT Jul 12, 2026
Forecast Valid:
8am 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