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Rialto, CA 92376 Weather

Tonight: Mostly Cloudy, low 57°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Rialto, CA 92376 current weather

64°F

Partly Cloudy

Forecast for this hour. No recent report from a nearby station.

H -- / L 57°

No recent station report. NWS hourly forecast updated 10/28/2026, 11:33 AM PT

Hourly forecast

NWS, updated 10/28/2026, 11:33 AM PT

  1. Now64°
  2. 10 PM62°
  3. 11 PM61°
  4. 12 AM60°Thu
  5. 1 AM59°
  6. 2 AM58°
  7. 3 AM58°
  8. 4 AM58°
  9. 5 AM58°
  10. 6 AM57°
  11. 7 AM57°
  12. 8 AM58°
  13. 9 AM61°
  14. 10 AM64°
  15. 11 AM68°
  16. 12 PM70°
  17. 1 PM71°
  18. 2 PM73°
  19. 3 PM72°
  20. 4 PM73°
  21. 5 PM72°
  22. 6 PM69°
  23. 7 PM67°
  24. 8 PM65°
  25. 9 PM64°
  26. 10 PM63°
  27. 11 PM63°16%
  28. 12 AM62°16%Fri
  29. 1 AM61°16%
  30. 2 AM60°16%
  31. 3 AM60°16%
  32. 4 AM60°16%
  33. 5 AM60°16%
  34. 6 AM60°16%
  35. 7 AM60°16%
  36. 8 AM60°16%
  37. 9 AM61°16%
  38. 10 AM64°16%
  39. 11 AM66°
  40. 12 PM68°
  41. 1 PM69°
  42. 2 PM70°
  43. 3 PM70°
  44. 4 PM70°
  45. 5 PM69°
  46. 6 PM67°
  47. 7 PM66°
  48. 8 PM64°

10-day forecast

Tap a day for details

  • Today10/28Low 57°High

    Tonight: Mostly cloudy, with a low around 57. West wind 0 to 5 mph.

    Mostly Cloudy
  • Thu10/2916% chance of precipitationLow 59°High 74°

    Thursday: Partly sunny, with a high near 74. West wind 0 to 5 mph.

    Thursday Night: A slight chance of rain showers after 11pm. Mostly cloudy, with a low around 59. Northwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Partly Sunny
  • Fri10/3016% chance of precipitationLow 57°High 71°

    Friday: A slight chance of rain showers before 11am. Partly sunny, with a high near 71. Southwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Friday Night: Mostly cloudy, with a low around 57. South wind 0 to 5 mph.

    Slight Chance Rain Showers then Partly Sunny
  • Sat10/3176% chance of precipitationLow 58°High 68°

    Saturday: Rain showers likely after 11am. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.

    Saturday Night: Rain showers. Cloudy, with a low around 58.

    Rain Showers Likely
  • Sun11/170% chance of precipitationLow 56°High 68°

    Sunday: Rain showers likely. Mostly cloudy, with a high near 68.

    Sunday Night: A slight chance of rain showers before 10pm. Partly cloudy, with a low around 56.

    Rain Showers Likely
  • Mon11/2Low 57°High 73°

    Monday: Sunny, with a high near 73.

    Monday Night: Mostly clear, with a low around 57.

    Sunny
  • Tue11/310% chance of precipitationLow 57°High 75°

    Tuesday: Sunny, with a high near 75.

    Tuesday Night: Mostly clear, with a low around 57.

    Sunny
  • Wed11/4Low High 73°

    Wednesday: Mostly sunny, with a high near 73.

    Mostly Sunny
  • Thu11/5Model blendLow 54°High 73°

    Thursday: Mostly sunny. High near 73°. Low that night near 54°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend11% chance of precipitationLow 54°High 72°

    Friday: Partly cloudy. High near 72°. Low that night near 54°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 34.103, -117.377 from the NWS SGX office, updated 10/28/2026, 11:33 AM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KSBD (San Bernardino Intl, 8 mi), model run 10/28/2026, 7:00 PM PDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now64°Partly Cloudy0%0 mph
  2. 10 PM62°Partly Cloudy0%0 mph
  3. 11 PM61°Mostly Cloudy0%0 mph
  4. 12 AM60°Mostly Cloudy0%0 mph
  5. 1 AM59°Mostly Cloudy0%5 mph
  6. 2 AM58°Mostly Cloudy0%0 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gusts
Show

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

Will it rain in Rialto, CA 92376 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Rialto, CA 92376?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 5 to Nov 6) come from the NOAA National Blend of Models, with highs of 72°F to 73°F. Model guidance this far out often changes.
What time is sunrise and sunset in Rialto, CA 92376 today?
Sunrise is about 7:05 AM PDT and sunset is about 6:00 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Rialto, CA 92376?
At Riverside Citrus Exp, the 1991 to 2020 normal high in October is 82°F and the normal low is 55°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.11 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

California hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: NORTE Fire (570 acres), LAC-386945 Fire, LAC-387508 Fire, MAPLE Fire, LAC-388234 Fire

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (C San Bernardino)
58ModeratePM2.5

UV index guide · Air quality

Drought

By county

San Bernardino County, week of 10/20/2026

53% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:05 AM
Sunset
6 PM
Daylight
10 hr 55 min
Moon
Waning Gibbous 90% lit
First light (civil dawn)
6:40 AM
Last light (civil dusk)
6:26 PM
Moonrise
7:44 PM
Moonset
10:03 AM

Normal October weather

Climate

Normal October high 82°, low 55°, precipitation 0.40 in for the month. 1991 to 2020 normals at Riverside Citrus Exp, 9 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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