Posen Weather Forecast
- 64
- 86
Mostly Sunny
- 67
- 87
Slight Chance Thunderstorms
- 64
- 82
Chance Rain Showers
- 64
- 79
Chance Thunderstorms
- 64
- 78
Chance Rain Showers
- 63
- 76
Chance Rain Showers
- 61
- 74
Partly Sunny
Today 18 Sep Southern Cook
Sunny. Highs in the mid 80s. South Winds around 5 Mph, becoming east in the afternoon.
Tonight 18 Sep Southern Cook
Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.
Posen Temperature Statistics
September Temperature
Lansing Municipal Airport (9.9 miles)
Lowest 8 September, 2025
40.1 °FAverage September
63.9 °FHighest 14 September, 2025
83.3 °F
Climate (2020–Present)
Lansing Municipal Airport (9.9 miles)
Average Low 2020–2025
42.3 °FAverage 2020–2025
51.4 °FAverage High 2020–2025
60.3 °F