New Glarus Weather Forecast
- 61
- 86
Mostly Cloudy
- 61
- 81
Chance Thunderstorms
- 61
- 78
Chance Rain Showers
- 61
- 81
Chance Thunderstorms
- 59
- 80
Chance Rain Showers
- 56
- 77
Slight Chance Thunderstorms
Today 18 Sep Green
Mostly sunny. Highs in the mid 80s. Southeast Winds up to 5 Mph.
Tonight 18 Sep Green
Partly cloudy. Lows around 60. Southeast Winds up to 5 Mph.
New Glarus Temperature Statistics
September Temperature
Monroe Municipal Airport (13 miles)
Lowest 7 September, 2025
43.2 °FAverage September
63.2 °FHighest 15 September, 2025
86 °F
Climate (2020–Present)
Monroe Municipal Airport (13 miles)
Average Low 2020–2025
41.3 °FAverage 2020–2025
49.7 °FAverage High 2020–2025
58.1 °F