Crofton Weather Forecast
- 72
- 97
Chance Thunderstorms
- 72
- 94
Chance Thunderstorms
- 71
- 90
Chance Thunderstorms
- 74
- 92
Rain Showers Likely
- 65
- 89
Partly Sunny
- 62
- 85
Slight Chance Rain Showers
- 64
- 84
Partly Sunny
Today 4 Sep Knox
Sunny, hot. Near steady temperature in the lower 90s. Southeast Winds around 10 Mph with Gusts up to 20 Mph. Heat index Values up to 104.
Tonight 4 Sep Knox
Mostly clear. A chance of Showers and Thunderstorms. Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.
Crofton Temperature Statistics
September Temperature
Yankton, Chan Gurney Municipal Airport (13.7 miles)
Lowest 2 September, 2026
66.9 °FAverage September
77.6 °FHighest 2 September, 2026
91.9 °F
Climate (2021–2026)
Yankton, Chan Gurney Municipal Airport (13.7 miles)
Average Low 2021–2026
39.3 °FAverage 2021–2026
50.5 °FAverage High 2021–2026
61.8 °F