Current Conditions

Rialto, California

80°F27°C
Clear

Wind

SW 8 mph12 km/h

Humidity

27%

Cloud Cover

0%

As of Wednesday, September 2, 2026 at 5:01 PM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 82°F28°C and morning low of 77°F25°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. Dry air.

Night

Mostly clear, with a low around 65°F18°C. Light wind from the SSW around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 82°F28°CLow 65°F18°CPrecip 0 in0 mmCloud 0%Wind SW 5 mph9 km/hWednesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 77°F25°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 65°F18°C. Light wind from the SSW around 3 mph5 km/h.
ClearHigh 81°F27°CLow 59°F15°CPrecip 0 in0 mmCloud 2%Wind SSW 4 mph7 km/hThursday: Mostly clear and warm, with a high of 81°F27°C and morning low of 64°F18°C. Breezy from the SSW at 6 to 7 mph9 to 12 km/h. Dry air. Thursday Night: Mostly clear, with a low around 59°F15°C. Light wind from the S around 3 mph5 km/h.
ClearHigh 82°F28°CLow 60°F15°CPrecip 0 in0 mmCloud 9%Wind SSW 4 mph6 km/hFriday: Mostly clear and warm, with a high of 82°F28°C and morning low of 64°F18°C. Breezy from the SSW at 5 to 8 mph9 to 12 km/h. Dry air. Friday Night: Mostly clear, with a low around 60°F15°C. Light wind from the S around 3 mph4 km/h.
ClearHigh 84°F29°CLow 60°F16°CPrecip 0 in0.1 mm5%Cloud 8%Wind S 4 mph6 km/hSaturday: Mostly clear and warm, with a high of 84°F29°C and morning low of 68°F20°C. Breezy from the SSW at 6 to 8 mph9 to 13 km/h. Dry air. Saturday Night: Mostly clear, with a low around 60°F16°C. Light wind from the SSE around 2 mph4 km/h.
ShowersHigh 80°F27°CLow 67°F19°CPrecip 0.12 in3.1 mm37%Cloud 28%Wind SSW 4 mph6 km/hSunday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 69°F20°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. 37% chance of showers throughout the day. Sunday Night: Mostly clear, with a low around 67°F19°C. Light wind from the S around 2 mph4 km/h. 28% chance of drizzle before dawn.
ClearHigh 85°F29°CLow 62°F17°CPrecip 0 in0 mmCloud 9%Wind SSW 3 mph6 km/hMonday: Mostly clear and warm, with a high of 85°F29°C and morning low of 68°F20°C. Light wind from the SSW around 5 mph7 km/h. Dry air. Monday Night: Mostly clear, with a low around 62°F17°C. Light wind from the S around 2 mph4 km/h.
ClearHigh 88°F31°CLow 62°F17°CPrecip 0 in0.1 mm3%Cloud 21%Wind SSW 3 mph5 km/hTuesday: Mostly clear and hot, with a high of 88°F31°C and morning low of 67°F20°C. Light wind from the SSW around 4 mph7 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 62°F17°C. Light wind from the SSE around 2 mph3 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 282°F28°C65°F18°C0 in0 mm· —0%ClearSW 5 mph9 km/h
ThursdaySep 381°F27°C59°F15°C0 in0 mm· —2%ClearSSW 4 mph7 km/h
FridaySep 482°F28°C60°F15°C0 in0 mm· —9%ClearSSW 4 mph6 km/h
SaturdaySep 584°F29°C60°F16°C0 in0.1 mm· 5%8%ClearS 4 mph6 km/h
SundaySep 680°F27°C67°F19°C0.12 in3.1 mm· 37%28%ShowersSSW 4 mph6 km/h
MondaySep 785°F29°C62°F17°C0 in0 mm· —9%ClearSSW 3 mph6 km/h
TuesdaySep 888°F31°C62°F17°C0 in0.1 mm· 3%21%ClearSSW 3 mph5 km/h
WednesdaySep 989°F32°C65°F18°C0.01 in0.3 mm· 8%23%ClearSSW 3 mph5 km/h
ThursdaySep 1088°F31°C67°F20°C0.02 in0.4 mm· 8%20%ClearSSW 3 mph5 km/h
FridaySep 1186°F30°C66°F19°C0.02 in0.4 mm· 5%22%ClearSSW 3 mph6 km/h
SaturdaySep 1284°F29°C66°F19°C0.02 in0.6 mm· 6%33%ClearSSW 4 mph6 km/h
SundaySep 1383°F28°C65°F18°C0.06 in1.5 mm· 12%36%ShowersSSW 3 mph6 km/h
MondaySep 1485°F30°C64°F18°C0.02 in0.6 mm· 5%24%ClearSSW 3 mph5 km/h
TuesdaySep 1586°F30°C65°F18°C0.03 in0.7 mm· 8%21%ClearSW 3 mph5 km/h
WednesdaySep 1687°F31°C65°F18°C0.04 in0.9 mm· 8%21%ClearSSW 3 mph5 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 34.1064°N, 117.3703°W·Elevation: 383m·Timezone: America/Los_Angeles·Population: 103,132