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

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

63°F

17°C

Humidity 25%
Wind Speed NW 16 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 13 Oct 02:00 PM MDT
Extended Forecast for

Ontario ORSimilar City Names

Frost Advisory October 13, 02:19pm until October 14, 10:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory October 13, 02:19pm until October 14, 10:00am

    NOW until 10:00am Wed

    Frost Advisory

  • This Afternoon

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Wednesday

    Wednesday: Areas of frost before 10am. Otherwise, sunny, with a high near 71. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 71 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. North northwest wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Calm wind.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Friday

    Friday: Patchy frost before 9am. Otherwise, sunny, with a high near 74.

    High: 74 °F

    Patchy Frost
    then Sunny

  • Friday Night

    Friday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 68. Northwest wind around 8 mph.
Tonight
Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Areas of frost before 10am. Otherwise, sunny, with a high near 71. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 38. North northwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 71. Calm wind.
Thursday Night
Clear, with a low around 36.
Friday
Patchy frost before 9am. Otherwise, sunny, with a high near 74.
Friday Night
Clear, with a low around 42.
Saturday
Sunny, with a high near 73.
Saturday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 39.
Sunday
Patchy fog. Otherwise, sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario ORSimilar City Names
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
12:29 pm MDT Oct 13, 2026
Forecast Valid:
2pm MDT Oct 13, 2026-6pm MDT Oct 19, 2026
 
Forecast Discussion
 
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