Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

90°F

32°C

Humidity 29%
Wind Speed NNE 8 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 01 Aug 06:20 PM MDT
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 65. Northwest wind around 6 mph becoming calm  after midnight.

    Low: 65 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny and hot, with a high near 94. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 94 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: Patchy smoke. Mostly clear, with a low around 65. North northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 65 °F

    Patchy Smoke

  • Sunday

    Sunday: Patchy smoke. Sunny and hot, with a high near 93. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 93 °F

    Patchy Smoke

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 66. Light north northwest wind becoming northwest 13 to 18 mph in the evening.  Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke. Mostly clear, with a low around 65. Northwest wind around 6 mph becoming calm after midnight.
Saturday
Patchy smoke. Sunny and hot, with a high near 94. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Saturday Night
Patchy smoke. Mostly clear, with a low around 65. North northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Patchy smoke. Sunny and hot, with a high near 93. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 66. Light north northwest wind becoming northwest 13 to 18 mph in the evening. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny and hot, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny and hot, with a high near 91.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
3:06 pm MDT Aug 1, 2025
6pm MDT Aug 1, 2025-6pm MDT Aug 8, 2025
 
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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