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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

46°F

8°C

Humidity 75%
Wind Speed S 4 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 14 Nov 07:30 PM MST
Extended Forecast for

36 Miles SSE Unity OR

  • Tonight

    Tonight: Partly cloudy, with a low around 38. West southwest wind around 7 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52. West southwest wind around 7 mph becoming east in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 39. East northeast wind around 5 mph becoming light and variable after midnight.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 45. North northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39. West wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly before 11pm. Partly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Tuesday

    Tuesday: A slight chance of rain and snow before 11am. Snow level 5600 feet. Mostly sunny, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. West southwest wind around 7 mph.
Saturday
Sunny, with a high near 52. West southwest wind around 7 mph becoming east in the afternoon.
Saturday Night
A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 39. East northeast wind around 5 mph becoming light and variable after midnight.
Sunday
Rain likely. Mostly cloudy, with a high near 45. North northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39. West wind 6 to 8 mph. Chance of precipitation is 70%.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
Monday Night
A 30 percent chance of rain, mainly before 11pm. Partly cloudy, with a low around 35.
Tuesday
A slight chance of rain and snow before 11am. Snow level 5600 feet. Mostly sunny, with a high near 45. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
A chance of rain and snow. Snow level 5300 feet. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Thursday
A chance of rain and snow. Snow level 5100 feet. Partly sunny, with a high near 42. Chance of precipitation is 40%.
Thursday Night
A slight chance of rain and snow. Snow level 5200 feet. Partly cloudy, with a low around 31. Chance of precipitation is 20%.
Friday
A slight chance of rain and snow. Snow level rising to 5500 feet in the afternoon. Mostly sunny, with a high near 42. Chance of precipitation is 10%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
36 Miles SSE Unity OR
 43.93°N 117.98°W (Elev. 4984 ft)
Last Update:
2:04 pm MST Nov 14, 2025
Forecast Valid:
7pm MST Nov 14, 2025-6pm MST Nov 21, 2025
 
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Additional Resources

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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