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 after midnight. Lows in the lower 70s. Southeast Winds 10 to 15 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