Ontario, Oregon | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    48°
    Sunday 5/19
    Forecast night icon
    48°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Lows 41 to 46. Northwest winds 10 to 15 mph with gusts to 25 mph.
  • Forecast day icon
    Monday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Mostly Clear
    43°
    Monday 5/20
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Chance of rain 20 percent. Highs 65 to 70. Breezy. Northwest winds 10 to 20 mph with gusts to 30 mph.
    Night Details
    Mostly clear. Lows 39 to 44. Breezy. Northwest winds 10 to 20 mph. Gusts to 30 mph in the evening.
  • Forecast day icon
    Tuesday
    Sunny
    74°
    Forecast night icon
    Night
    60% Chance Rain Showers
    54°
    Tuesday 5/21
    Day
    74°
    Sunny
    Forecast day icon
    Night
    54°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs 69 to 74. West winds up to 10 mph with gusts to 20 mph.
    Night Details
    Increasing clouds. Rain showers likely mainly after midnight. Chance of rain 60 percent. Lows 47 to 52. West winds 10 to 15 mph.
  • Forecast day icon
    Wednesday
    80% Chance of Storms
    65°
    Forecast night icon
    Night
    30% Chance Rain Showers
    41°
    Wednesday 5/22
    Day
    65°
    80% Chance of Storms
    Forecast day icon
    Night
    41°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely in the morning then rain showers with a slight chance of thunderstorms in the afternoon. Chance of rain 80 percent. Highs 62 to 68.
    Night Details
    Mostly cloudy with a chance of rain showers in the evening then partly cloudy after midnight. Chance of rain 30 percent. Lows 39 to 44.
  • Forecast day icon
    Thursday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Clearing
    43°
    Thursday 5/23
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Clearing
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain showers. Highs 61 to 68.
    Night Details
    Decreasing clouds. Lows 40 to 45.
  • Forecast day icon
    Friday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Increasing Clouds
    53°
    Friday 5/24
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    Increasing Clouds
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs 69 to 75.
    Night Details
    Increasing clouds. Lows 47 to 52.
  • Forecast day icon
    Saturday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Saturday 5/25
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain showers. Highs 68 to 74.
    Night Details
    Partly cloudy. A 20 percent chance of rain showers. Lows 43 to 48. Highs 68 to 74.
  • Forecast day icon
    Sunday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Clear
    49°
    Sunday 5/26
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Partly cloudy. A 20 percent chance of rain showers. Lows 43 to 48. Highs 68 to 74.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 35F with an average humidity of 47%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Monday
    Sunny
    77°
    Forecast night icon
    Night
    Clear
    52°
    Monday 5/27
    Day
    77°
    Sunny
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 77F. Dew point will be around 36F with an average humidity of 35%. Winds will be 3 mph from the W.
    Night Details
    Clear. Low temperature around 52F. Dew point will be around 36F with an average humidity of 42%. Winds will be 4 mph from the NE.
  • Forecast day icon
    Tuesday
    Sunny
    81°
    Forecast night icon
    Night
    Mostly Clear
    56°
    Tuesday 5/28
    Day
    81°
    Sunny
    Forecast day icon
    Night
    56°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 81F. Dew point will be around 39F with an average humidity of 34%. Winds will be 2 mph from the NW.
    Night Details
    Mostly clear. Low temperature around 56F. Dew point will be around 40F with an average humidity of 42%. Winds will be 5 mph from the NW.