Custer Weather Forecast
- 62
- 79
Slight Chance Rain Showers
- 50
- 77
Becoming Sunny
- 44
- 65
Partly Sunny
- 56
- 67
Rain Showers
- 49
- 70
Slight Chance Rain Showers
- 50
- 67
Chance Rain Showers
- 49
- 69
Slight Chance Thunderstorms
Today 11 Sep Portage
Mostly sunny. Nearly steady temperature in the upper 70s. South wind 10 to 15 Mph.
Tonight 11 Sep Portage
Warmer. Partly cloudy. A slight chance of Showers after midnight. Lows in the lower 60s. South wind 10 to 15 Mph. Chance of rain 20 percent.
Custer Temperature Statistics
September Temperature
Stevens Point Municipal Airport (5.6 miles)
Lowest 7 September, 2026
56.1 °FAverage September
72.8 °FHighest 1 September, 2026
90.7 °F
Climate (2021–2026)
Stevens Point Municipal Airport (5.6 miles)
Average Low 2021–2026
36.7 °FAverage 2021–2026
46.9 °FAverage High 2021–2026
56.3 °F