Ontario, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Wednesday
    Mostly Cloudy
    71°
    Forecast night icon
    Night
    Mostly Clear
    55°
    Wednesday 5/1
    Day
    71°
    Mostly Cloudy
    Forecast day icon
    Night
    55°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with patchy fog this morning. . . Becoming sunny. Highs 75 to 80. Areas of winds southwest to 10 mph becoming west with gusts to 30 mph this afternoon.
    Night Details
    Mostly clear. Lows 49 to 54. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
  • Forecast day icon
    Thursday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Mostly Clear
    56°
    Thursday 5/2
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    56°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs 79 to 83. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 30 mph in the afternoon.
    Night Details
    Mostly clear. Lows 49 to 55. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.
  • Forecast day icon
    Friday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Partly Cloudy
    57°
    Friday 5/3
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    57°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs 79 to 83. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 30 mph in the afternoon.
    Night Details
    Clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 48 to 55.
  • Forecast day icon
    Saturday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Chance of Rain Showers
    55°
    Saturday 5/4
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    55°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 75 to 79.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a slight chance of showers overnight. Patchy fog overnight. Lows 45 to 53.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    63°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Sunday 5/5
    Day
    63°
    Chance of Rain Showers
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Mostly cloudy with a slight chance of showers in the morning then partly cloudy in the afternoon. Highs 62 to 68.
    Night Details
    Partly cloudy. Patchy fog overnight. Lows 41 to 48.
  • Forecast day icon
    Monday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Monday 5/6
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Partly cloudy. Highs 69 to 75.
    Night Details
    Mostly clear. Lows 44 to 51.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    Clear
    53°
    Tuesday 5/7
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Mostly sunny. Highs 72 to 77.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 48F with an average humidity of 69%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Wednesday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    53°
    Wednesday 5/8
    Day
    69°
    Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 50F with an average humidity of 64%. Winds will be 7 mph from the SW.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 72%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Thursday
    Sunny
    67°
    Forecast night icon
    Night
    Clear
    54°
    Thursday 5/9
    Day
    67°
    Sunny
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 67F. Dew point will be around 49F with an average humidity of 63%. Winds will be 6 mph from the SW.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 49F with an average humidity of 71%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Friday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    54°
    Friday 5/10
    Day
    68°
    Sunny
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 49F with an average humidity of 61%. Winds will be 6 mph from the SW.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 48F with an average humidity of 68%. Winds will be 5 mph from the SW.