Heffner Lake Weather Forecast
- 46
- 68
Rain Showers
- 41
- 62
Breezy
- 44
- 64
Chance Rain Showers
- 50
- 69
Partly Sunny
- 48
- 71
Chance Rain Showers
- 47
- 69
Slight Chance Rain Showers
Today 14 Sep McHenry
Showers and a slight chance of Thunderstorms in the Morning, then mostly sunny with a chance of Showers in the afternoon. Windy. Highs in the upper 60s. Southeast Winds around 25 Mph, becoming southwest in the afternoon. Gusts up to 50 Mph.
Tonight 14 Sep McHenry
Mostly cloudy. Lows in the upper 40s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.
Heffner Lake Temperature Statistics
September Temperature
RUGBY (25.5 miles)
Lowest 10 September, 2026
50 °FAverage September
65.6 °FHighest 5 September, 2026
84.2 °F
Climate (2021–2026)
RUGBY (25.5 miles)
Average Low 2021–2026
27 °FAverage 2021–2026
37.6 °FAverage High 2021–2026
47.9 °F