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

Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. 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 21%
Wind Speed NNW 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 13 Jul 01:05 PM MDT
Extended Forecast for

Ontario OR

Heat Advisory until July 14, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until July 14, 09:00pm

    NOW until 9:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 102 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 72. North northwest wind 6 to 8 mph.

    Low: 72 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 103. West northwest wind 5 to 8 mph.

    High: 103 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 70. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 102. North northwest wind 5 to 7 mph.
Tonight
Clear, with a low around 72. North northwest wind 6 to 8 mph.
Monday
Sunny and hot, with a high near 103. West northwest wind 5 to 8 mph.
Monday Night
Clear, with a low around 70. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 95. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 66.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Sunny and hot, with a high near 100.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny and hot, with a high near 101.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
9:02 am MDT Jul 13, 2025
Forecast Valid:
1pm MDT Jul 13, 2025-6pm MDT Jul 19, 2025
 
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