Excessive Heat to Continue for Washington State; Flooding Impacts Expected in the Southwest U.S.

Excessive heat will continue over portions of central Washington Friday with afternoon temperatures into the 100s. In the Desert Southwest, monsoon activity will continue to generate localized flash flooding impacts in arroyos, slot canyons, and urban areas, as well as rapid rises on rivers, through this weekend. Flood Watches are widespread across Arizona, and New Mexico into far west Texas. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185ft.

Clear

79°F

26°C

Humidity 39%
Wind Speed S 10 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Aug 02:20 AM MDT
Extended Forecast for

Ontario ORSimilar City Names

  • Overnight

    Overnight: Isolated showers and thunderstorms.  Mostly cloudy, with a low around 72. Calm wind.  Chance of precipitation is 20%.

    Isolated
    T-storms

    Low: 72 °F

  • Friday

    Friday: Mostly cloudy and hot, with a high near 94. Light south southeast wind.

    Hot

    High: 94 °F

  • Friday
    Night

    Friday Night: Patchy smoke after midnight. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm  in the evening.

    Partly Cloudy
    then Patchy
    Smoke

    Low: 70 °F

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 101. Light east southeast wind.

    Hot

    High: 97 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 69. Light and variable wind.

    Mostly Clear

    Low: 69 °F

  • Sunday

    Sunday: Sunny and hot, with a high near 101.

    Hot

    High: 101 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 70.

    Partly Cloudy

    Low: 70 °F

  • Monday

    Monday: Mostly sunny and hot, with a high near 97.

    Hot

    High: 97 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 67.

    Mostly Clear

    Low: 67 °F

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
Friday
Mostly cloudy and hot, with a high near 94. Light south southeast wind.
Friday Night
Patchy smoke after midnight. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 101. Light east southeast wind.
Saturday Night
Mostly clear, with a low around 69. Light and variable wind.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny and hot, with a high near 96.
Click Map For Forecast
Point Forecast:
Ontario ORSimilar City Names
 44.03°N 116.97°W (Elev. 2103 ft)
9:10 pm MDT Aug 18, 2022
2am MDT Aug 19, 2022-6pm MDT Aug 25, 2022
 
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Additional Resources

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