Spring
76°F / 51°F
March, April, May: about 2.0 in of rain.
Plan a visit
Best time to visit Fontana
April, May, October bring mild highs and the least rain.
Best time to visit
April · May · October
Highs between 65°F and 85°F with the least rain of the year. Hottest: August (95°F). Coldest nights: December (43°F). Wettest: February.
Fontana by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Great | 68°F / 44°F | 2.3 in | |
| February | Great | 68°F / 45°F | 2.4 in | Valentine’s Day |
| March | Great | 72°F / 47°F | 1.2 in | St. Patrick’s Day |
| April | Great | 76°F / 50°F | 0.60 in | |
| May | Great | 80°F / 55°F | 0.20 in | |
| June | Good | 87°F / 59°F | 0.00 in | Fourth of July |
| July | Hot | 93°F / 64°F | 0.10 in | Fourth of July |
| August | Hot | 95°F / 65°F | 0.00 in | |
| September | Hot | 91°F / 62°F | 0.10 in | Halloween |
| October | Great | 83°F / 55°F | 0.30 in | Halloween |
| November | Great | 75°F / 47°F | 0.60 in | Halloween, Thanksgiving, Christmas |
| December | Great | 67°F / 43°F | 1.5 in | Christmas, New Year’s Eve |
“Great” means highs between 65°F and 85°F with fewer than 10 wet days. Averages are NOAA’s 1991–2020 normals for the Riverside Muni Ap station, not a forecast.
Around Fontana
See Fontana before you go
A DRIVE AROUND TOWN
Drive through northern Fontana
A recorded drive explores northern Fontana from the road. Check present-day conditions before planning your own journey.
Watch on YouTube ↗
THINGS TO DO · YOUTUBE SHORT
Fontana, CA makes it easy to get fit and stay healthy.
An activity Short shared by The Bare Pantry Show.
Watch on YouTube ↗Questions
What is the best month to visit Fontana?
April, May, October: highs between 65°F and 85°F with the least rain.
What is the hottest month in Fontana?
August, averaging 95°F highs.
What is the coldest month in Fontana?
December, with average lows of 43°F.
What is the rainiest month in Fontana?
February, averaging 2.4 in of precipitation.
When are the big holidays in Fontana?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.