Mascoutah Weather Forecast
- 54
- 73
Increasing Clouds
- 55
- 71
Chance Rain Showers
- 61
- 79
Chance Thunderstorms
- 53
- 76
Thunderstorms Likely
- 39
- 63
Partly Sunny
- 37
- 57
Mostly Sunny
Today 29 Mar St. Clair
Mostly sunny. Not as cool with Highs in the mid 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 29 Mar St. Clair
Partly cloudy and not as cool. Near steady temperature in the mid 40s. Southwest Winds 5 to 10 Mph.
Mascoutah Temperature Statistics
March Temperature
Belleville, Scott AFB/MidAmerica Airport (5 miles)
Lowest 18 March, 2024
25.5 °FAverage March
52 °FHighest 14 March, 2024
79.7 °F
Climate (2019–Present)
Belleville, Scott AFB/MidAmerica Airport (5 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
47 °FAverage 2019–2024
56.7 °FAverage High 2019–2024
66.9 °F