Currently: 60 °F. Mostly cloudy. (Weather station: Ontario International Airport, USA). See more current weatherAnnual Weather Averages Near Rancho Cucamonga
Averages are for Ontario International Airport, which is 4 miles from Rancho Cucamonga.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Rancho Cucamonga
High Temp: 94 °F
Low Temp: 43 °F
Mean Temp: 66 °F
Precipitation: 0.74"
Humidity: 54%
Dew Point: 47 °F
Wind: 9 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Rancho Cucamonga
High Temp: 67 °F
Low Temp: 44 °F
Mean Temp: 56 °F
Precipitation: 1.79"
Humidity: 54%
Dew Point: 37 °F
Wind: 6 mph
Pressure: 30.08 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Rancho Cucamonga
High Temp: 67 °F
Low Temp: 46 °F
Mean Temp: 56 °F
Precipitation: 2.14"
Humidity: 59%
Dew Point: 40 °F
Wind: 7 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Rancho Cucamonga
High Temp: 71 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 1.06"
Humidity: 59%
Dew Point: 43 °F
Wind: 9 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Rancho Cucamonga
High Temp: 75 °F
Low Temp: 51 °F
Mean Temp: 63 °F
Precipitation: 0.66"
Humidity: 56%
Dew Point: 45 °F
Wind: 11 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Rancho Cucamonga
High Temp: 79 °F
Low Temp: 56 °F
Mean Temp: 67 °F
Precipitation: 0.24"
Humidity: 59%
Dew Point: 51 °F
Wind: 12 mph
Pressure: 29.91 "Hg
Visibility: 8 mi
June Climate & Weather Averages in Rancho Cucamonga
High Temp: 86 °F
Low Temp: 60 °F
Mean Temp: 73 °F
Precipitation: 0.03"
Humidity: 57%
Dew Point: 55 °F
Wind: 12 mph
Pressure: 29.87 "Hg
Visibility: 8 mi
July Climate & Weather Averages in Rancho Cucamonga
High Temp: 93 °F
Low Temp: 64 °F
Mean Temp: 78 °F
Precipitation: 0.07"
Humidity: 52%
Dew Point: 58 °F
Wind: 12 mph
Pressure: 29.88 "Hg
Visibility: 8 mi
August Climate & Weather Averages in Rancho Cucamonga
High Temp: 94 °F
Low Temp: 65 °F
Mean Temp: 80 °F
Precipitation: 0.03"
Humidity: 49%
Dew Point: 57 °F
Wind: 11 mph
Pressure: 29.87 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Rancho Cucamonga
High Temp: 91 °F
Low Temp: 63 °F
Mean Temp: 77 °F
Precipitation: 0.10"
Humidity: 49%
Dew Point: 55 °F
Wind: 9 mph
Pressure: 29.86 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Rancho Cucamonga
High Temp: 82 °F
Low Temp: 56 °F
Mean Temp: 69 °F
Precipitation: 0.40"
Humidity: 52%
Dew Point: 48 °F
Wind: 8 mph
Pressure: 29.93 "Hg
Visibility: 8 mi
November Climate & Weather Averages in Rancho Cucamonga
High Temp: 74 °F
Low Temp: 49 °F
Mean Temp: 61 °F
Precipitation: 0.68"
Humidity: 50%
Dew Point: 40 °F
Wind: 6 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Rancho Cucamonga
High Temp: 66 °F
Low Temp: 43 °F
Mean Temp: 55 °F
Precipitation: 1.68"
Humidity: 53%
Dew Point: 36 °F
Wind: 6 mph
Pressure: 30.07 "Hg
Visibility: 10 mi