Round Lake Weather Forecast
- 55
- 83
Mostly Sunny
- 57
- 85
Partly Sunny
- 52
- 77
Partly Sunny
- 57
- 79
Partly Sunny
- 61
- 83
Chance Rain Showers
- 60
- 79
Chance Rain Showers
- 57
- 78
Chance Rain Showers
Today 17 Sep Clinton
Sunny. Highs in the lower 80s. Light Winds.
Tonight 17 Sep Clinton
Mostly clear. Lows in the mid 50s. Light Winds.
Round Lake Temperature Statistics
September Temperature
Capital Region International Airport (10.6 miles)
Lowest 8 September, 2025
39 °FAverage September
61.6 °FHighest 14 September, 2025
82.9 °F
Climate (2020–Present)
Capital Region International Airport (10.6 miles)
Average Low 2020–2025
42.1 °FAverage 2020–2025
51 °FAverage High 2020–2025
60 °F