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Strong Storm Systems Impacting Both Costs

The storm system on the East Coast is bringing widespread rain to the Mid-Atlantic and the Northeast. Freezing rain and snow is possible in interior, southern New England. A powerful Pacific storm system will bring heavy rain, high elevation snow, gusty winds, and extremely rough surf to the Pacific Northwest and northern California. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Fair

33°F

1°C

Humidity 85%
Wind Speed W 3 MPH
Barometer 30.18 in (1024.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 16 Dec 9:53 am MST
Extended Forecast for

Ontario ORSimilar City Names

  • Today

    Today: A slight chance of rain and snow after 11am. Increasing clouds, with a high near 42. Light and variable wind. Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow

    High: 42 °F

  • Tonight

    Tonight: Rain likely, mainly after 11pm. Cloudy, with a low around 34. Calm wind becoming southeast around 5 mph. Chance of precipitation is 70%.

    Rain Likely

    Low: 34 °F

  • Monday

    Monday: Rain likely before 11am. Mostly cloudy, with a high near 46. Calm wind. Chance of precipitation is 60%.

    Rain Likely
    then Partly
    Sunny

    High: 46 °F

  • Monday
    Night

    Monday Night: Rain after 11pm. Low around 35. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.

    Rain

    Low: 35 °F

  • Tuesday

    Tuesday: Rain. High near 44. South southeast wind 3 to 6 mph. Chance of precipitation is 90%.

    Rain

    High: 44 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 34.

    Chance Rain
    then Mostly
    Cloudy

    Low: 34 °F

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44.

    Mostly Cloudy

    High: 44 °F

  • Wednesday
    Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Mostly Cloudy

    Low: 30 °F

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    Partly Sunny

    High: 43 °F

Detailed Forecast

Today
A slight chance of rain and snow after 11am. Increasing clouds, with a high near 42. Light and variable wind. Chance of precipitation is 20%.
Tonight
Rain likely, mainly after 11pm. Cloudy, with a low around 34. Calm wind becoming southeast around 5 mph. Chance of precipitation is 70%.
Monday
Rain likely before 11am. Mostly cloudy, with a high near 46. Calm wind. Chance of precipitation is 60%.
Monday Night
Rain after 11pm. Low around 35. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.
Tuesday
Rain. High near 44. South southeast wind 3 to 6 mph. Chance of precipitation is 90%.
Tuesday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 43.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 29.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 40.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Ontario ORSimilar City Names
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
8:49 am MST Dec 16, 2018
Forecast Valid:
10am MST Dec 16, 2018-6pm MST Dec 22, 2018
 
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