Weather in Rialto, CA
Updated 2026-09-26 08:00 local time · ZIP codes 92376, 92377
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
73°9% rain
76°4% rain79°9% rain
83°1% rain86°1% rain89°7% rain90°1% rain90°1% rain89°1% rain88°1% rain84°9% rain
82°9% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Today vs yesterday in Rialto
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 9%).
It feels like 73°F with winds near 2 mph.
76°F, 4% rain chance and 0 mph wind.
Visibility is around 6 mi; gusts may reach 26 mph.
Current temperature is 73°F, wind 2 mph, rain chance up to 9%.
UV index is 0.
Local weather characteristics in Rialto
California weather varies from cool marine conditions along parts of the Pacific coast to hot inland valleys, deserts and snowy mountain climates. Short distances can produce large temperature differences.
Rialto is part of the West weather region. The forecast point is near 34.11°N latitude and 117.37°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Rialto weather today
Overcast and 73°F in Rialto, CA. Today's high is 90°F with a 5% rain chance. Winds are around 2 mph with gusts near 7 mph. Relative humidity is 43%, pressure is 29.90 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Rialto
Sunrise is at 06:40 AM and sunset is at 06:41 PM. Tomorrow's forecast calls for Overcast with a high near 86°F and a low near 72°F. The maximum rain chance is 6%.