National Weather Service

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SCN26-34: Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices: Effective May 6, 2026

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

72°F

22°C

Humidity	18%
Wind Speed	NW 5 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Last update	09 Apr 03:05 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Ontario Municipal OR

Tonight
Low: 46 °F
Mostly Cloudy
Friday
High: 70 °F
Scattered
Showers
Friday Night
Low: 48 °F
Showers
Saturday
High: 65 °F
Showers then
Chance
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 56 °F
Showers
Sunday Night
Low: 40 °F
Showers
Likely
Monday
High: 57 °F
Chance
Showers
Monday Night
Low: 37 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 46. North northeast wind around 6 mph becoming light and variable after midnight.

Friday

Scattered showers, mainly after 10am. Partly sunny, with a high near 70. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

Friday Night

Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 3am, then showers after 3am. Low around 48. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and possibly a thunderstorm before 10am, then showers likely between 10am and noon, then a chance of showers and thunderstorms after noon. High near 65. Calm wind becoming south southeast 5 to 9 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers, mainly after 8pm. Low around 44. South southeast wind 5 to 7 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

Showers, with thunderstorms also possible after 3pm. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers likely, mainly before midnight. Mostly cloudy, with a low around 40. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

A 50 percent chance of showers. Mostly cloudy, with a high near 57.

Monday Night

Mostly cloudy, with a low around 37.

Tuesday

Mostly sunny, with a high near 60.

Tuesday Night

Mostly cloudy, with a low around 40.

Wednesday

A 30 percent chance of showers. Mostly cloudy, with a high near 58.

Wednesday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 34.