Murphy Lake Weather Forecast
- 51
- 73
Becoming Sunny
- 60
- 74
Rain Showers Likely
- 62
- 70
Rain Showers Likely
- 49
- 69
Chance Rain Showers
- 45
- 63
Mostly Sunny
- 48
- 62
Partly Sunny
Today 28 Sep Washington
Partly sunny in the morning then clearing. Highs in the lower 70s. Northeast Winds up to 5 Mph.
Tonight 28 Sep Washington
Partly cloudy. Lows around 50. Southeast 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
64.9 °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