Murphy Lake Weather Forecast
- 61
- 78
Decreasing Clouds
- 58
- 77
Partly Sunny
- 62
- 79
Mostly Cloudy
- 69
- 82
Rain Showers Likely
- 61
- 84
Partly Sunny
- 56
- 76
Partly Sunny
Today 5 Sep Washington
Mostly cloudy until late afternoon then becoming mostly sunny. Areas of fog in the morning. Highs in the upper 70s. Northeast Winds up to 10 Mph.
Tonight 5 Sep Washington
Mostly clear. Lows around 60. Northeast Winds up to 5 Mph.
Murphy Lake Temperature Statistics
September Temperature
Waukesha County Airport (13.7 miles)
Lowest 2 September, 2026
71.6 °FAverage September
77.9 °FHighest 1 September, 2026
87.8 °F
Climate (2021–2026)
Waukesha County Airport (13.7 miles)
Average Low 2021–2026
38.7 °FAverage 2021–2026
46.2 °FAverage High 2021–2026
56.6 °F