Rancho Cucamonga, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Rancho Cucamonga now
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Rancho Cucamonga weather by the hour
Rancho Cucamonga weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rancho Cucamonga.
This week in Rancho Cucamonga
Sunrise, sunset and moon in Rancho Cucamonga
What is the weather usually like in Rancho Cucamonga?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 94°F average high
- Decembercoldest month · 43°F average low
- 11.6 inprecipitation per year · 296 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rancho Cucamonga: April–May and October–November, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ONTARIO INTL AP, CA US (USW00003102), adjusted for the elevation of Rancho Cucamonga.
Rancho Cucamonga weather month by month
Sunrise and sunset in Rancho Cucamonga through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 6:54 AM | 5:05 PM | 10 h 11 min |
| February | 6:33 AM | 5:35 PM | 11 h 2 min |
| March | 6:58 AM | 6:59 PM | 12 h 0 min |
| April | 6:17 AM | 7:23 PM | 13 h 5 min |
| May | 5:46 AM | 7:46 PM | 13 h 59 min |
| June | 5:36 AM | 8:04 PM | 14 h 28 min |
| July | 5:48 AM | 8:03 PM | 14 h 15 min |
| August | 6:10 AM | 7:38 PM | 13 h 28 min |
| September | 6:32 AM | 6:58 PM | 12 h 25 min |
| October | 6:54 AM | 6:17 PM | 11 h 22 min |
| November | 6:22 AM | 4:47 PM | 10 h 25 min |
| December | 6:47 AM | 4:43 PM | 9 h 56 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Rancho Cucamonga?
Rancho Cucamonga has a hot semi-arid climate. The warmest month is August, with an average high of 94°F (34°C), and the coldest is December, with average lows of 43°F (6°C).
It gets about 11.6 inches (296 mm) of precipitation a year. The wettest month is February and the driest is June.
The best time to visit Rancho Cucamonga is April–May and October–November. At 1,207 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Rancho Cucamonga
Weather in towns near Rancho Cucamonga
Questions about the weather in Rancho Cucamonga
What is the hottest month in Rancho Cucamonga?
August, with an average high of 94°F (34°C).
What is the coldest month in Rancho Cucamonga?
December, with an average low of 43°F (6°C).
How much does it rain in Rancho Cucamonga?
About 11.6 inches (296 mm) a year; the wettest month is February.
Does it snow in Rancho Cucamonga?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Rancho Cucamonga?
April–May and October–November, when temperatures are most pleasant and rainy days are fewer.
What climate does Rancho Cucamonga have?
Hot semi-arid (Köppen BSh).
What is the weather like in Rancho Cucamonga in November?
Highs average 74°F and lows 48°F, with about 0.8 inches of precipitation.
What time is sunrise in Rancho Cucamonga?
Around 6:22 AM in mid-November, and sunset around 4:47 PM. Today’s exact times are shown above.
Where does this Rancho Cucamonga weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Rancho Cucamonga.
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