Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

52°F

11°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 01 Mar 02:00 PM MST
Extended Forecast for

Ontario OR

  • This Afternoon

    This Afternoon: A 40 percent chance of rain.  Cloudy, with a high near 52. Calm wind.

    High: 52 °F

    Chance Rain

  • Tonight

    Tonight: Showers likely, mainly after 11pm.  Patchy fog after 11pm.  Otherwise, cloudy, with a low around 43. Calm wind.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: Showers, mainly before 11am.  Patchy fog before 11am. High near 59. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 32. Light west northwest wind.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain.  High near 54. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 11pm.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Cloudy, with a high near 52. Calm wind.
Tonight
Showers likely, mainly after 11pm. Patchy fog after 11pm. Otherwise, cloudy, with a low around 43. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, mainly before 11am. Patchy fog before 11am. High near 59. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 32. Light west northwest wind.
Tuesday
Partly sunny, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Rain. High near 54. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 55.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
2:04 pm MST Mar 1, 2026
2pm MST Mar 1, 2026-6pm MST Mar 7, 2026
 
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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