Mascoutah Weather Forecast
- 46
- 80
Rain Showers
- 46
- 60
Partly Sunny
- 40
- 60
Mostly Cloudy
- 39
- 60
Mostly Sunny
- 51
- 67
Partly Sunny
- 47
- 70
Slight Chance Thunderstorms
Today 18 Apr St. Clair
Mostly cloudy late this Morning, then partly sunny with numerous Showers and Thunderstorms this afternoon. Highs around 80. South Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon. Chance of rain 60 percent.
Tonight 18 Apr St. Clair
Mostly cloudy. Showers and numerous Thunderstorms in the Evening, then scattered Showers after midnight. Lows in the mid 40s. West Winds 15 to 20 Mph, becoming northwest after midnight. Chance of rain 80 percent.
Mascoutah Temperature Statistics
April Temperature
Belleville, Scott AFB/MidAmerica Airport (5 miles)
Lowest 6 April, 2024
34.2 °FAverage April
58.9 °FHighest 14 April, 2024
85.5 °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
56.8 °FAverage High 2019–2024
67 °F