St Charles Weather Forecast
- 55
- 71
Becoming Sunny
- 65
- 74
Rain Showers Likely
- 61
- 79
Slight Chance Thunderstorms
- 63
- 77
Chance Thunderstorms
- 69
- 80
Chance Thunderstorms
- 70
- 87
Chance Thunderstorms
Today 17 Jul Winona
Mostly sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.
Tonight 17 Jul Winona
Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. East Winds around 5 Mph, becoming southeast after midnight.
St Charles Temperature Statistics
July Temperature
Winona, Winona Municipal Airport-Max Conrad Field (19.3 miles)
Lowest 13 July, 2025
55.4 °FAverage July
75.4 °FHighest 4 July, 2025
91.4 °F
Climate (2020–Present)
Winona, Winona Municipal Airport-Max Conrad Field (19.3 miles)
Average Low 2020–2025
39.1 °FAverage 2020–2025
48.2 °FAverage High 2020–2025
57.3 °F