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Alpine, CA 91901 Weather

It is 55°F in Alpine, CA 91901, observed at 6:10 AM PDT. Today: Chance Light Rain, high 62°F, low 52°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Alpine, CA 91901 current weather

55°F

Chance Light Rain

H 62° / L 52°Feels like 55°

Observed at Viejas (2.6 mi away), 10/30/2026, 6:10 AM PDT

Hourly forecast

NWS, updated 10/30/2026, 12:08 AM PT

  1. Now56°38%
  2. 7 AM56°38%
  3. 8 AM56°38%
  4. 9 AM56°38%
  5. 10 AM57°38%
  6. 11 AM58°18%
  7. 12 PM60°18%
  8. 1 PM60°18%
  9. 2 PM61°18%
  10. 3 PM60°18%
  11. 4 PM60°18%
  12. 5 PM60°30%
  13. 6 PM58°30%
  14. 7 PM57°30%
  15. 8 PM56°30%
  16. 9 PM56°30%
  17. 10 PM55°30%
  18. 11 PM55°
  19. 12 AM54°Sat
  20. 1 AM54°
  21. 2 AM53°
  22. 3 AM53°
  23. 4 AM53°
  24. 5 AM52°
  25. 6 AM53°
  26. 7 AM53°
  27. 8 AM54°
  28. 9 AM57°
  29. 10 AM59°
  30. 11 AM61°
  31. 12 PM62°
  32. 1 PM63°
  33. 2 PM63°
  34. 3 PM63°
  35. 4 PM62°
  36. 5 PM60°71%
  37. 6 PM58°71%
  38. 7 PM58°71%
  39. 8 PM57°71%
  40. 9 PM57°71%
  41. 10 PM58°71%
  42. 11 PM58°92%
  43. 12 AM57°92%Sun
  44. 1 AM57°92%
  45. 1 AM56°92%
  46. 2 AM56°92%
  47. 3 AM56°92%
  48. 4 AM56°89%

10-day forecast

Tap a day for details

  • Today10/3038% chance of precipitationLow 52°High 62°

    Today: A chance of rain. Mostly cloudy, with a high near 62. Southwest wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Tonight: A slight chance of rain before 11pm. Mostly cloudy, with a low around 52. South wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Light Rain
  • Sat10/3192% chance of precipitationLow 55°High 64°

    Saturday: Rain showers likely after 5pm. Cloudy, with a high near 64. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: Rain showers. Cloudy, with a low around 55. South wind 0 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Cloudy then Rain Showers Likely
  • Sun11/189% chance of precipitationLow 50°High 61°

    Sunday: Rain showers. Mostly cloudy, with a high near 61. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Sunday Night: A chance of rain showers before 4am. Partly cloudy, with a low around 50. Chance of precipitation is 40%.

    Rain Showers
  • Mon11/2Low 52°High 67°

    Monday: Sunny, with a high near 67.

    Monday Night: Mostly clear, with a low around 52.

    Sunny
  • Tue11/318% chance of precipitationLow 52°High 68°

    Tuesday: Sunny, with a high near 68.

    Tuesday Night: A slight chance of rain showers after 4am. Partly cloudy, with a low around 52.

    Sunny
  • Wed11/418% chance of precipitationLow 51°High 64°

    Wednesday: A slight chance of rain showers before 4pm. Mostly sunny, with a high near 64.

    Wednesday Night: Partly cloudy, with a low around 51.

    Slight Chance Rain Showers
  • Thu11/530% chance of precipitationLow 50°High 63°

    Thursday: Mostly sunny, with a high near 63.

    Thursday Night: A chance of rain showers after 4am. Partly cloudy, with a low around 50.

    Mostly Sunny
  • Fri11/6Model blend25% chance of precipitationLow 53°High 74°

    Friday: Partly cloudy, slight chance of rain. High near 74°. Low that night near 53°. About 0.01 in of precipitation.

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

  • Sat11/7Model blendLow 55°High 77°

    Saturday: Mostly sunny. High near 77°. Low that night near 55°.

    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 57°High 79°

    Sunday: Mostly sunny. High near 79°. Low that night near 57°.

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

Forecast for 32.809, -116.700 from the NWS SGX office, updated 10/30/2026, 12:08 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KSEE (San Diego/Gillespie Fld, 16 mi), model run 10/30/2026, 1:00 AM 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. Now56°Chance Light Rain38%0 mph
  2. 7 AM56°Chance Light Rain38%0 mph
  3. 8 AM56°Chance Light Rain38%0 mph
  4. 9 AM56°Chance Light Rain38%5 mph
  5. 10 AM57°Chance Light Rain38%5 mph
  6. 11 AM58°Chance Light Rain18%5 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

What is the weather in Alpine, CA 91901 right now?
The latest observation from Viejas was 55°F, reported at 10/30/2026, 6:10 AM PDT.
What is the high temperature today in Alpine, CA 91901?
The National Weather Service forecast for today calls for a high near 62°F. Chance Light Rain.
Will it rain in Alpine, CA 91901 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 Alpine, CA 91901?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 74°F to 79°F. Model guidance this far out often changes.
What time is sunrise and sunset in Alpine, CA 91901 today?
Sunrise is about 7:03 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 Alpine, CA 91901?
At Alpine, the 1991 to 2020 normal high in October is 78°F and the normal low is 54°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
1.51 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: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (San Diego Foothills)
43GoodOzone
AQI forecast tomorrow (San Diego Foothills)
41GoodOzone

UV index guide · Air quality

Drought

By county

San Diego County, week of 10/27/2026

65% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
7:03 AM
Sunset
5:57 PM
Daylight
10 hr 54 min
Moon
Waning Gibbous 80% lit
First light (civil dawn)
6:37 AM
Last light (civil dusk)
6:22 PM
Moonrise
9:57 PM
Moonset
12:06 PM

Normal October weather

Climate

Normal October high 78°, low 54°, precipitation 0.59 in for the month. 1991 to 2020 normals at Alpine, 5 mi away.

Other places nearby

Data sources

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About this data

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