Marysville Weather Forecast
- 23
- 30
Increasing Clouds
- 33
- 40
Partly Sunny
- 39
- 53
Mostly Cloudy
- 52
- 56
Rain Likely
- 37
- 69
Rain Likely
- 30
- 43
Chance Rain
- 36
- 42
Chance Rain
Today 27 Mar St. Clair
Mostly sunny Early, then becoming partly cloudy. Near steady temperature around 30. North Winds 5 to 15 Mph.
Tonight 27 Mar St. Clair
Partly cloudy. A slight chance of snow until early morning. Lows in the lower 20s. Northeast Winds up to 5 Mph, becoming northwest. Chance of snow 20 percent.
Marysville Temperature Statistics
March Temperature
St Clair County International Airport (1.9 miles)
Lowest 2 March, 2026
10.4 °FAverage March
37.8 °FHighest 9 March, 2026
68 °F
Climate (2021–Present)
St Clair County International Airport (1.9 miles)
Average Low 2021–2026
39.7 °FAverage 2021–2026
49.4 °FAverage High 2021–2026
58.7 °F