Decker Lake Weather Forecast
- 42
- 66
Becoming Sunny
- 41
- 67
Mostly Sunny
- 41
- 69
Mostly Sunny
- 41
- 70
Mostly Sunny
- 43
- 71
Partly Sunny
- 47
- 73
Partly Sunny
Today 23 Sep Clare
Sunny. Highs in the mid 60s. East Winds 10 to 15 Mph.
Tonight 23 Sep Clare
Mostly clear. Lows in the lower 40s. East Winds 5 to 10 Mph with Gusts to around 20 Mph in the evening becoming light.
Decker Lake Temperature Statistics
September Temperature
Houghton Lake, Roscommon County Airport (21.7 miles)
Lowest 14 September, 2026
39.9 °FAverage September
62.5 °FHighest 1 September, 2026
88.6 °F
Climate (2021–2026)
Houghton Lake, Roscommon County Airport (21.7 miles)
Average Low 2021–2026
36.1 °FAverage 2021–2026
46.1 °FAverage High 2021–2026
55.8 °F