Summit Lake Weather Forecast
- 49
- 64
Chance Rain Showers
- 58
- 68
Partly Sunny
- 59
- 72
Chance Thunderstorms
- 59
- 72
Slight Chance Rain Showers
- 64
- 76
Chance Thunderstorms
- 65
- 82
Chance Thunderstorms
- 64
- 83
Chance Rain Showers
Today 16 Jul Grant
Cloudy with a 30 percent chance of Showers. Patchy smoke. Much cooler. Near steady temperature in the lower 60s. North Winds 10 to 15 Mph.
Tonight 16 Jul Grant
Mostly cloudy this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows around 50. North Winds 10 to 15 Mph.
Summit Lake Temperature Statistics
July Temperature
Sisseton, Sisseton Municipal Airport (26.1 miles)
Lowest 9 July, 2025
55.7 °FAverage July
73.4 °FHighest 4 July, 2025
92.6 °F
Climate (2020–Present)
Sisseton, Sisseton Municipal Airport (26.1 miles)
Average Low 2020–2025
36 °FAverage 2020–2025
46.6 °FAverage High 2020–2025
57.1 °F