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Lake Arrowhead, CA 92378 Weather

Tonight: Chance Rain Showers then Mostly Cloudy, low 40°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Lake Arrowhead, CA 92378 current weather

44°F

Chance Rain Showers

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

H -- / L 40°

No recent station report. NWS hourly forecast updated 10/30/2026, 7:42 PM PT

Hourly forecast

NWS, updated 10/30/2026, 7:42 PM PT

  1. Now44°31%
  2. 9 PM44°31%
  3. 10 PM45°31%
  4. 11 PM45°11%
  5. 12 AM44°11%Sat
  6. 1 AM44°11%
  7. 2 AM44°11%
  8. 3 AM43°11%
  9. 4 AM42°11%
  10. 5 AM42°
  11. 6 AM41°
  12. 7 AM42°
  13. 8 AM42°
  14. 9 AM43°
  15. 10 AM44°
  16. 11 AM45°
  17. 12 PM46°
  18. 1 PM46°
  19. 2 PM47°
  20. 3 PM46°
  21. 4 PM46°
  22. 5 PM45°43%
  23. 6 PM45°43%
  24. 7 PM45°43%
  25. 8 PM45°43%
  26. 9 PM46°43%
  27. 10 PM46°43%
  28. 11 PM47°76%
  29. 12 AM47°76%Sun
  30. 1 AM46°76%
  31. 1 AM46°76%
  32. 2 AM46°76%
  33. 3 AM46°76%
  34. 4 AM46°72%
  35. 5 AM46°72%
  36. 6 AM47°72%
  37. 7 AM46°72%
  38. 8 AM46°72%
  39. 9 AM46°72%
  40. 10 AM45°56%
  41. 11 AM45°56%
  42. 12 PM46°56%
  43. 1 PM46°56%
  44. 2 PM46°56%
  45. 3 PM46°56%
  46. 4 PM46°23%
  47. 5 PM46°23%
  48. 6 PM45°23%

10-day forecast

Tap a day for details

  • Today10/3031% chance of precipitationLow 40°High

    Tonight: A chance of rain showers before 11pm. Mostly cloudy, with a low around 40. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Rain Showers then Mostly Cloudy
  • Sat10/3176% chance of precipitationLow 45°High 47°

    Saturday: A chance of rain after 5pm. Mostly cloudy, with a high near 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: Rain. Cloudy, with a low around 45. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Mostly Cloudy then Chance Light Rain
  • Sun11/172% chance of precipitationLow 39°High 47°

    Sunday: Rain likely before 10am, then rain showers likely. Mostly cloudy, with a high near 47. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Sunday Night: A slight chance of rain showers before 10pm. Partly cloudy, with a low around 39. West wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Light Rain Likely then Rain Showers Likely
  • Mon11/2Low 42°High 50°

    Monday: Sunny, with a high near 50.

    Monday Night: Mostly clear, with a low around 42.

    Sunny
  • Tue11/3Low 42°High 52°

    Tuesday: Sunny, with a high near 52.

    Tuesday Night: Partly cloudy, with a low around 42.

    Sunny
  • Wed11/4Low 40°High 50°

    Wednesday: Sunny, with a high near 50.

    Wednesday Night: Mostly clear, with a low around 40.

    Sunny
  • Thu11/514% chance of precipitationLow 39°High 49°

    Thursday: Mostly sunny, with a high near 49.

    Thursday Night: Partly cloudy, with a low around 39.

    Mostly Sunny
  • Fri11/614% chance of precipitationLow High 47°

    Friday: Mostly sunny, with a high near 47.

    Mostly Sunny
  • Sat11/7Model blendLow 54°High 76°

    Saturday: Sunny. High near 76°. 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.

  • Sun11/8Model blendLow 56°High 79°

    Sunday: Mostly sunny. High near 79°. Low that night near 56°.

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

Forecast for 34.234, -117.223 from the NWS SGX office, updated 10/30/2026, 7:42 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KSBD (San Bernardino Intl, 10 mi), model run 10/30/2026, 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. Now44°Chance Rain Showers31%15 mph
  2. 9 PM44°Chance Rain Showers31%15 mph
  3. 10 PM45°Chance Rain Showers31%15 mph
  4. 11 PM45°Mostly Cloudy11%15 mph
  5. 12 AM44°Mostly Cloudy11%15 mph
  6. 1 AM44°Mostly Cloudy11%15 mph

Hourly details

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

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

Will it rain in Lake Arrowhead, CA 92378 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 Lake Arrowhead, CA 92378?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs of 76°F to 79°F. Model guidance this far out often changes.
What time is sunrise and sunset in Lake Arrowhead, CA 92378 today?
Sunrise is about 7:07 AM PDT and sunset is about 5:57 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Lake Arrowhead, CA 92378?
At Lake Arrowhead, the 1991 to 2020 normal high in October is 63°F and the normal low is 43°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.75 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: LAC-389721 Fire, LAC-390369 Fire, LAC-392866 Fire

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (C San Bernardino M)
41GoodOzone

UV index guide · Air quality

Drought

By county

San Bernardino County, week of 10/27/2026

18% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:07 AM
Sunset
5:57 PM
Daylight
10 hr 50 min
Moon
Waning Gibbous 74% lit
First light (civil dawn)
6:41 AM
Last light (civil dusk)
6:23 PM
Moonrise
9:55 PM
Moonset
12:13 PM

Normal October weather

Climate

Normal October high 63°, low 43°, precipitation 2.06 in for the month. 1991 to 2020 normals at Lake Arrowhead, 2 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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