Montclair, CA Weather Forecast
San Bernardino County, California
Live radar, warnings and storm tracking for Montclair, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Montclair
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Montclair, CA at a glance
Montclair is home to about 37,545 people in San Bernardino County, across 5.5 square miles. It ranks 211th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Pomona, 4 miles away.
- County
- San Bernardino County
- Population
- 37,545 2023 est.
- Land area
- 5.5 sq mi
- People per sq mi
- 6,788
- Forecast point
- 34.0715°N, 117.6981°W
How well can the network see Montclair?
The nearest Doppler radar is KSOX (Santa Ana Mountains, CA), to the SSE. Its lowest scan passes about 980 ft above Montclair. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Montclair show up clearly. Montclair is closer to its radar than 88% of US cities.
The closest weather station is KCCB (Upland/Cable Arpt). Close enough that its readings are the conditions in town.
Forecasts near Montclair
- Pomona, CA4 mi
- Upland, CA4 mi
- Claremont, CA4 mi
- La Verne, CA5 mi
- Ontario, CA6 mi
- San Dimas, CA7 mi
- Chino, CA7 mi
- Diamond Bar, CA8 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →

