Crofton Weather Forecast
- 53
- 62
Rain Showers
- 48
- 58
Rain Showers Likely
- 48
- 62
Mostly Cloudy
- 53
- 65
Mostly Cloudy
- 56
- 69
Slight Chance Rain Showers
- 58
- 71
Mostly Cloudy
Today 20 Sep Knox
Cloudy. A chance of Showers in the Morning, then Showers likely in the afternoon. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph. Chance of rain 70 percent.
Tonight 20 Sep Knox
Showers likely in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Chance of rain 90 percent.
Crofton Temperature Statistics
September Temperature
Yankton, Chan Gurney Municipal Airport (13.7 miles)
Lowest 13 September, 2026
48.9 °FAverage September
71.6 °FHighest 4 September, 2026
95 °F
Climate (2021–2026)
Yankton, Chan Gurney Municipal Airport (13.7 miles)
Average Low 2021–2026
39.4 °FAverage 2021–2026
50.5 °FAverage High 2021–2026
61.8 °F