Murphy Lake Weather Forecast
- 56
- 64
Increasing Clouds
- 50
- 66
Mostly Cloudy
- 50
- 66
Mostly Cloudy
- 50
- 67
Mostly Cloudy
- 53
- 68
Partly Sunny
- 57
- 70
Rain Showers Likely
Today 24 Sep Washington
Sunny in the morning then becoming partly sunny. Highs in the mid 60s. East Winds 5 to 10 Mph.
Tonight 24 Sep Washington
Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. East Winds up to 5 Mph through around midnight becoming calm.
Murphy Lake Temperature Statistics
September Temperature
Waukesha County Airport (13.7 miles)
Lowest 14 September, 2026
46.4 °FAverage September
66.6 °FHighest 1 September, 2026
87.8 °F
Climate (2021–2026)
Waukesha County Airport (13.7 miles)
Average Low 2021–2026
38.8 °FAverage 2021–2026
46.2 °FAverage High 2021–2026
56.6 °F