Murphy Lake Weather Forecast
- 50
- 61
Mostly Cloudy
- 48
- 60
Partly Sunny
- 50
- 64
Mostly Sunny
- 49
- 64
Partly Sunny
- 48
- 65
Partly Sunny
- 51
- 66
Mostly Cloudy
Today 21 Sep Washington
Cloudy. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph.
Tonight 21 Sep Washington
Mostly cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.
Murphy Lake Temperature Statistics
September Temperature
Waukesha County Airport (13.7 miles)
Lowest 14 September, 2026
46.4 °FAverage September
67.3 °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