Lake Washington Weather Forecast
- 44
- 62
Mostly Cloudy
- 42
- 58
Rain Showers
- 40
- 49
Rain Showers
- 42
- 64
Slight Chance Rain Showers
- 45
- 69
Mostly Sunny
- 50
- 68
Slight Chance Rain Showers
Today 18 May Le Sueur
Not as cool. Partly sunny then becoming mostly sunny in the late morning and early afternoon then becoming partly sunny. Highs in the lower 60s. North Winds 5 to 10 Mph shifting to the northeast in the afternoon.
Tonight 18 May Le Sueur
Mostly cloudy. Lows in the lower 40s. East Winds 10 to 15 Mph.
Lake Washington Temperature Statistics
May Temperature
Mankato, Mankato Regional Airport (3.1 miles)
Lowest 3 May, 2025
36 °FAverage May
64.7 °FHighest 11 May, 2025
90 °F
Climate (2020–Present)
Mankato, Mankato Regional Airport (3.1 miles)
Average Low 2020–2025
39.2 °FAverage 2020–2025
48.1 °FAverage High 2020–2025
57 °F