Lake Jefferson Weather Forecast
- 69
- 91
Sunny
- 70
- 93
Mostly Sunny
- 70
- 94
Mostly Sunny
- 70
- 93
Mostly Sunny
- 72
- 93
Mostly Sunny
Today 12 Jul Le Sueur
Sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.
Tonight 12 Jul Le Sueur
Clear. Lows around 70. Southwest Winds 5 to 10 Mph.
Lake Jefferson Temperature Statistics
July Temperature
Mankato, Mankato Regional Airport (7.5 miles)
Lowest 5 July, 2026
64.9 °FAverage July
74.7 °FHighest 6 July, 2026
84 °F
Climate (2021–2026)
Mankato, Mankato Regional Airport (7.5 miles)
Average Low 2021–2026
39.3 °FAverage 2021–2026
48.2 °FAverage High 2021–2026
57.1 °F