Lynn Weather Forecast
- 57
- 84
Chance Rain Showers
- 50
- 72
Partly Sunny
- 53
- 75
Mostly Cloudy
- 60
- 82
Chance Rain Showers
- 58
- 77
Rain Showers Likely
- 56
- 79
Chance Rain Showers
Today 18 Sep St. Clair
Mostly sunny in the Morning, then a slight chance of Showers early in the afternoon. Partly cloudy with a chance of Showers and a slight chance of Thunderstorms in the late afternoon. Highs in the lower 80s. Temperatures falling into the in the lower 70s in the afternoon. Northwest Winds up to 10 Mph, becoming northeast in the late afternoon. Chance of rain 30 percent.
Tonight 18 Sep St. Clair
Mostly cloudy. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.
Lynn Temperature Statistics
September Temperature
Lapeer Dupont-lapeer (17.4 miles)
Lowest 8 September, 2025
37.4 °FAverage September
60.6 °FHighest 14 September, 2025
82.4 °F
Climate (2020–Present)
Lapeer Dupont-lapeer (17.4 miles)
Average Low 2020–2025
39.7 °FAverage 2020–2025
49.5 °FAverage High 2020–2025
58.8 °F