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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

75°F

24°C

Humidity 39%
Wind Speed N 9 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 01 Sep 01:53 PM MDT
Extended Forecast for

Ontario OR

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 3pm. Mostly cloudy early, then becoming sunny, with a high near 84. East southeast wind around 6 mph becoming light and variable.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy smoke between 2am and 3am. Increasing clouds, with a low around 58. Calm wind becoming west around 5 mph after midnight.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 78. South southwest wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 78 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers, mainly after midnight. Low around 56. West southwest wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 68. Southeast wind around 6 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before midnight. Patchy fog before 2am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A 20 percent chance of showers before noon. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Areas of fog between 7am and 10am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 3pm. Mostly cloudy early, then becoming sunny, with a high near 84. East southeast wind around 6 mph becoming light and variable.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy smoke between 2am and 3am. Increasing clouds, with a low around 58. Calm wind becoming west around 5 mph after midnight.
Wednesday
A 40 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 78. South southwest wind 5 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Showers, mainly after midnight. Low around 56. West southwest wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 68. Southeast wind around 6 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely, mainly before midnight. Patchy fog before 2am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers before noon. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 71.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 49.
Saturday
Areas of fog between 7am and 10am. Otherwise, mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 80.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Labor Day
A 40 percent chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
12:30 pm MDT Sep 1, 2026
Forecast Valid:
2pm MDT Sep 1, 2026-6pm MDT Sep 7, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation