Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

57°F

14°C

Humidity 44%
Wind Speed WSW 3 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 10 Oct 11:35 PM MDT
Extended Forecast for

Ontario ORSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 47. West southwest wind 5 to 7 mph.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 62. West northwest wind 7 to 9 mph.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 43. West wind 6 to 8 mph.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon.  Partly sunny, with a high near 59. Southwest wind 5 to 7 mph.

    High: 59 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 44. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Slight Chance
    Showers

  • Columbus Day

    Columbus Day: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon.  Partly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. West southwest wind 5 to 7 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 62. West northwest wind 7 to 9 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43. West wind 6 to 8 mph.
Sunday
A 20 percent chance of showers before noon. Partly sunny, with a high near 59. Southwest wind 5 to 7 mph.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44. South southwest wind around 5 mph becoming calm in the evening.
Columbus Day
Mostly cloudy, with a high near 62.
Monday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 42.
Tuesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 64.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 43.
Wednesday
A 30 percent chance of showers, mainly before noon. Mostly sunny, with a high near 63.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 62.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 41.
Friday
A 20 percent chance of showers. Areas of fog. Otherwise, mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario ORSimilar City Names
 44.03°N 116.97°W (Elev. 2103 ft)
3:04 pm MDT Oct 10, 2025
11pm MDT Oct 10, 2025-6pm MDT Oct 17, 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