Current weather
Checking the latest reportMeasured conditions from the National Weather Service.
BEFORE YOU HEAD OUT
Fontana weather, air quality and conditions
Plan around Fontana’s forecast, nearby weather observations and current regional air reports.
Peak UV forecast
Checking the forecastThe EPA's daily peak forecast, with its own forecast date.
UV index guide ↗Weather alerts
Checking local alertsOfficial alerts covering the Fontana area.
View the official forecast and alerts ↗Forecast
Forecast
Loading the National Weather Service forecast…
Official NWS forecast ↗Gas prices
View the gas guide for available station reports and their report times. Confirm pump prices and any cash or membership conditions with the station.
Air quality and roads
Current air-quality and highway information from the official services.
Check air quality and road closures before heading out. For pollen levels, consult a local allergy forecast.
Sunrise and sunset
Plan around sunrise, sunset and the golden-hour windows, calculated for Fontana and shown in Pacific time.
Plan a golden hour →Conditions update throughout the day.
Rivers and streams
Latest readings from U.S. Geological Survey gauges near Fontana. Provisional data, not a flood forecast; follow National Weather Service flood warnings.
Fontana Water Co Spill Ch From Afterbay near Fontana
4.9 miles from the city center
- Flow
- Gage height
- Water temperature
Lytle Creek at Colton CA
7.5 miles from the city center
- Flow
- Gage height
- Water temperature
Fontana Water Co Surface Diversion Weir 2 near Fontana CA
7.7 miles from the city center
- Flow
- Gage height
- Water temperature
Fontana Water Co Surface Diversion near Fontana CA
7.7 miles from the city center
- Flow
- Gage height
- Water temperature
Where Fontana's readings come from
- Forecast
- National Weather Service San Diego, CA office, forecast grid square 57,76. NWS San Diego, CA ↗
- Current conditions
- Ontario International Airport (nearby) (KONT). KONT recent observations ↗
- UV index
- EPA daily UV forecast for ZIP code 92335. About the UV index ↗
- Air quality
- AirNow reporting area: C San Bernardino, CA. AirNow ↗
- Weather alerts
- Active NWS alerts for the point at Fontana's center, in San Bernardino County. NWS alerts ↗
- Climate normals
- NOAA 1991–2020 normals at RIVERSIDE MUNI AP, CA, 9.7 miles away: August averages a high of 95°F and December a low of 43°F, with about 9 inches of precipitation a year. NOAA normals data ↗