Mesa Extended Forecast with high and low temperatures. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the La Mesa area. 77 ° 36 ° 30. 81 ° 39 ° 3. Check out our current live radar and weather forecasts for La Mesa, California to help plan your day Current conditions at DW5256 La Mesa (D5256) Lat: 32.7663°NLon: 117.01335°WElev: 659ft. Saturday, December 5 Red Flag Warning. 74 ° 35 ° 6. 74 ° 41 ° 4. 81 ° 42 ° 1. 11 pm. °F. 75 ° 34 ° 5. Get the forecast for today, tonight & tomorrow's weather for La Mesa, NM. Last 2 weeks of weather as of 11:00 pm PST. La Mesa Extended Forecast with high and low temperatures. Up to 90 days of daily highs, lows, and precipitation chances. 80 ° 39 ° 2. La Mesa, CA Monthly Weather. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Last 2 weeks of weather Get the latest 7 Day weather for La Mesa, CA, US including weather news, video, warnings and interactive maps from the weather experts. Know what's coming with AccuWeather's extended daily forecasts for La Mesa, CA. 29. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. La Mesa Weather Forecasts. °F. Hourly Weather-La Mesa, CA. 11:20 am PST sun mon tue wed thu fri sat. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for La Mesa, CA, US with The Weather Network. Want to know what the weather is now?