New Glarus Weather Forecast
- 54
- 64
Slight Chance Rain Showers
- 49
- 63
Chance Rain Showers
- 46
- 62
Partly Sunny
- 47
- 65
Partly Sunny
- 49
- 66
Mostly Cloudy
- 48
- 67
Mostly Cloudy
Today 20 Sep Green
Cloudy. Patchy fog late in the morning. Light Showers likely late in the Morning, then slight chance of light Showers early in the afternoon. Highs in the mid 60s. Northeast Winds 15 to 20 Mph. Chance of Showers 70 percent.
Tonight 20 Sep Green
Mostly cloudy. A 20 percent chance of light rain Showers after midnight. Lows in the mid 50s. Northeast Winds 10 to 15 Mph.
New Glarus Temperature Statistics
September Temperature
Monroe Municipal Airport (13 miles)
Lowest 14 September, 2026
52 °FAverage September
71.5 °FHighest 1 September, 2026
92.7 °F
Climate (2021–2026)
Monroe Municipal Airport (13 miles)
Average Low 2021–2026
41.5 °FAverage 2021–2026
50 °FAverage High 2021–2026
58.6 °F