La Mesa Weather Forecast
- 42
- 60
Becoming Sunny
- 49
- 64
Mostly Sunny
- 54
- 74
Mostly Sunny
- 59
- 77
Partly Sunny
- 53
- 73
Partly Sunny
- 49
- 63
Partly Sunny
Today 8 Dec Coastal Harris
Mostly sunny. Cooler with Highs around 60. North Winds 5 to 10 Mph.
Tonight 8 Dec Coastal Harris
Clear. Lows in the lower 40s. Northeast Winds 5 to 10 Mph.
La Mesa Temperature Statistics
December Temperature
Houston / Ellington (5 miles)
Lowest 2 December, 2025
39.2 °FAverage December
48.4 °FHighest 3 December, 2025
59 °F
Climate (2020–Present)
Houston / Ellington (5 miles)
Average Low 2020–2025
63.8 °FAverage 2020–2025
71.5 °FAverage High 2020–2025
79.9 °F