Current weather
Checking the latest reportMeasured conditions from the National Weather Service.
BEFORE YOU HEAD OUT
La Mesa weather, air quality and conditions
Plan around La Mesa’s forecast, nearby weather observations and current regional air reports.
Peak UV forecast
Checking the forecastThe EPA's daily peak forecast, with its own forecast date.
UV index guide ↗Weather alerts
Checking local alertsOfficial alerts covering the La Mesa area.
View the official forecast and alerts ↗Forecast
Forecast
Loading the National Weather Service forecast…
Official NWS forecast ↗Gas prices
View the gas guide for available station reports and their report times. Confirm pump prices and any cash or membership conditions with the station.
Air quality and roads
Current air-quality and highway information from the official services.
Check air quality and road closures before heading out. For pollen levels, consult a local allergy forecast.
Sunrise and sunset
Plan around sunrise, sunset and the golden-hour windows, calculated for La Mesa and shown in Pacific time.
Plan a golden hour →Conditions update throughout the day.
Rivers and streams
Latest readings from U.S. Geological Survey gauges near La Mesa. Provisional data, not a flood forecast; follow National Weather Service flood warnings.
Alvarado Creek near La Mesa CA
2.5 miles from the city center
- Flow
- Gage height
- Water temperature
San Diego River at Mast Road near Santee CA
5 miles from the city center
- Flow
- Gage height
- Water temperature
San Diego River at Fashion Valley at San Diego CA
8.5 miles from the city center
- Flow
- Gage height
- Water temperature
Los Coches Creek near Lakeside CA
8.6 miles from the city center
- Flow
- Gage height
- Water temperature
Where La Mesa's readings come from
- Forecast
- National Weather Service San Diego, CA office, forecast grid square 62,15. NWS San Diego, CA ↗
- Current conditions
- Montgomery-Gibbs Executive Airport (KMYF). KMYF recent observations ↗
- UV index
- EPA daily UV forecast for ZIP code 91942. About the UV index ↗
- Air quality
- AirNow reporting area: San Diego Mesa and Inland Valley, CA. AirNow ↗
- Weather alerts
- Active NWS alerts for the point at La Mesa's center, in San Diego County. NWS alerts ↗
- Climate normals
- NOAA 1991–2020 normals at SAN DIEGO MONTGOMERY FLD, CA, 7.5 miles away: August averages a high of 82°F and December a low of 45°F, with about 11 inches of precipitation a year. NOAA normals data ↗