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

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

93°F

34°C

Humidity 23%
Wind Speed N 0 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 30 Jun 08:30 PM MDT
Extended Forecast for

Ontario OR

Heat Advisory July 1, 11:00am until July 1, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 67. Calm wind becoming north northwest around 6 mph after midnight.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before noon. Sunny and hot, with a high near 104. North wind 3 to 6 mph.

    High: 104 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. North northwest wind 6 to 8 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 99. West northwest wind 5 to 7 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 68. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny and hot, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Independence Day

    Independence Day: A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 67. Calm wind becoming north northwest around 6 mph after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms before noon. Sunny and hot, with a high near 104. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 71. North northwest wind 6 to 8 mph.
Wednesday
Mostly sunny and hot, with a high near 99. West northwest wind 5 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 68. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny and hot, with a high near 93. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.
Independence Day
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny and hot, with a high near 95.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny and hot, with a high near 97.
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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:
3:19 pm MDT Jun 30, 2025
Forecast Valid:
8pm MDT Jun 30, 2025-6pm MDT Jul 7, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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