Checked
La Mesa, CA 91942 Weather
It is 59°F in La Mesa, CA 91942, observed at 4:05 AM PDT. Today: Mostly Cloudy then Rain Showers Likely, high 72°F, low 57°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).
La Mesa, CA 91942 current weather
59°F
Cloudy
H 72° / L 57°Feels like 59°
No rain expected in the next 12 hours
Observed at DW5256 La Mesa (0.9 mi away), 10/31/2026, 4:05 AM PDT
Hourly forecast
NWS, updated 10/31/2026, 12:09 AM PT
10-day forecast
Tap a day for details
Today10/3173% chance of precipitationLow 57°High 72°
Saturday: Rain showers likely after 5pm. Mostly cloudy, with a high near 72. Southeast wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Overnight: Mostly cloudy, with a low around 57. East wind around 5 mph.
Mostly Cloudy then Rain Showers LikelySun11/182% chance of precipitationLow 56°High 68°
Sunday: Rain showers. Cloudy, with a high near 68. Northwest wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: A slight chance of rain showers before 10pm. Mostly cloudy, with a low around 56. East wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Rain ShowersMon11/2Low 56°High 75°
Monday: Sunny, with a high near 75.
Monday Night: Partly cloudy, with a low around 56.
SunnyTue11/3Low 56°High 76°
Tuesday: Sunny, with a high near 76.
Tuesday Night: Partly cloudy, with a low around 56.
SunnyWed11/4Low 56°High 74°
Wednesday: Mostly sunny, with a high near 74.
Wednesday Night: Partly cloudy, with a low around 56.
Mostly SunnyThu11/5Low 56°High 74°
Thursday: Mostly sunny, with a high near 74.
Thursday Night: Partly cloudy, with a low around 56.
Mostly SunnyFri11/6Low High 75°
Friday: Sunny, with a high near 75.
SunnySat11/7Model blendLow 57°High 85°
Saturday: Sunny. High near 85°. 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.
Sun11/8Model blendLow 58°High 85°
Sunday: Mostly sunny. High near 85°. Low that night near 58°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Mon11/9Model blendLow 57°High 82°
Monday: Partly cloudy. High near 82°. 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 32.775, -117.026 from the NWS SGX office, updated 10/31/2026, 12:09 AM PT · Official forecast on weather.gov
Days 8 to 10: NOAA National Blend of Models, station KSEE (San Diego/Gillespie Fld, 5 mi), model run 10/31/2026, 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
- Now58°Cloudy14%5 mph
- 5 AM58°Mostly Cloudy9%5 mph
- 6 AM57°Mostly Cloudy9%5 mph
- 7 AM57°Mostly Cloudy9%5 mph
- 8 AM58°Mostly Cloudy9%5 mph
- 9 AM62°Mostly Cloudy9%5 mph
Hourly details
Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShowHide
Radar and satellite
National radarNEXRAD (up to 24 hours) and GOES
Frequently asked questions
- What is the weather in La Mesa, CA 91942 right now?
- The latest observation from DW5256 La Mesa was 59°F, reported at 10/31/2026, 4:05 AM PDT.
- What is the high temperature today in La Mesa, CA 91942?
- The National Weather Service forecast for saturday calls for a high near 72°F. Mostly Cloudy then Rain Showers Likely.
- Will it rain in La Mesa, CA 91942 in the next 24 hours?
- The hourly forecast shows a 73% chance of precipitation around 10/31/2026, 5:00 PM PDT.
- What is the 10-day forecast for La Mesa, CA 91942?
- The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 7 to Nov 9) come from the NOAA National Blend of Models, with highs of 82°F to 85°F. Model guidance this far out often changes.
- What time is sunrise and sunset in La Mesa, CA 91942 today?
- Sunrise is about 7:05 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 La Mesa, CA 91942?
- At El Cajon, the 1991 to 2020 normal high in October is 81°F and the normal low is 56°F.
Rain and snow totals
Next 3 days, NWS forecast grid
- Rain (liquid)
- 0.58 in
- Snow
- 0.00 in
- Ice
- 0.00 in
Nearby hazards
California hazardsSevere 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: HENDERSON Fire (0 acres)
UV and air quality forecast
EPA and AirNow
- UV index today (La Mesa)
- 2Low
- 110a
- 111a
- 212p
- 21p
- 32p
- 23p
- 14p
- AQI forecast today (San Diego Mesa and Inland Valley)
- 39GoodOzone
- AQI forecast tomorrow (San Diego Mesa and Inland Valley)
- 39GoodOzone
Drought
By countySan Diego County, week of 10/27/2026
65% of the county is abnormally dry. No drought.
Tides nearby
NOAA tide stations
- National City, San Diego Bay9.3 mi
- San Diego (Broadway)9.7 mi
- South San Diego Bay11.1 mi
Beaches nearby
EPA BEACON beaches
Sun and moon
Local time, center of the area
- Sunrise
- 7:05 AM
- Sunset
- 5:57 PM
- Daylight
- 10 hr 53 min
- Moon
- Waning Gibbous 71% lit
- First light (civil dawn)
- 6:39 AM
- Last light (civil dusk)
- 6:23 PM
- Moonrise
- 11:12 PM
- Moonset
- 1:01 PM
Normal October weather
ClimateNormal October high 81°, low 56°, precipitation 0.54 in for the month. 1991 to 2020 normals at El Cajon, 6 mi away.
Other places nearby
Data sources
- National Weather Service APINOAA · Official site
- National Blend of Models (NBM) text guidanceNOAA National Weather Service · Official site
- Convective Outlooks and Storm ReportsNOAA Storm Prediction Center · Official site
- Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center · Official site
- National Water Prediction ServiceNOAA National Weather Service · Official site
- WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center · Official site
- UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA · Official site
- AirNowU.S. Environmental Protection Agency · Official site
- NWS HeatRisk (experimental)NOAA National Weather Service · Official site
- U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA · Official site
- BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency · Official site
- U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
- Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services · Official site
- NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University · Official site
- GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research · Official site
See something wrong? Request a correction
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.
Forecasts, observations and alerts come from the National Weather Service (api.weather.gov). Data can be delayed by minutes to hours, and an observation station may be miles from the place named on this page. This site is not affiliated with NOAA or the National Weather Service.
DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.
Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.