Weather on April 21 at Wind Cave
Wind Cave National Park
Based on 56 years of data from Hot Springs, SD
Elevation Note: Wind Cave sits at 4,000 ft. Expect temperatures 14°F cooler than the data shown below, which comes from Hot Springs, SD at a lower elevation.
Planning Your Visit
April 21st in Wind Cave National Park (via Hot Springs, SD) typically brings mild spring weather, with average highs around 63°F and lows near 33°F — a 30°F daily swing. Over 56 years of records, the warmest April 21st was in 1989 (65°F average), while the coldest was 2021 (29°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 32% of April 21st dates historically, with the wettest April 21st recording 4.29" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Wind Cave? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 88°F | 34°F | 0" | 0" |
| 2025 | 70°F | 22°F | 0.23" | 0" |
| 2024 | 58°F | 18°F | 0" | 0" |
| 2023 | 44°F | 25°F | 0" | 0" |
| 2022 | 73°F | 27°F | 0" | 0" |
| 2021 | 46°F | 13°F | 0" | 0" |
| 2020 | 71°F | 31°F | 0" | 0" |
| 2019 | 81°F | 49°F | 0.1" | 0" |
| 2018 | 59°F | 36°F | 0" | 0" |
| 2017 | 61°F | 40°F | 0" | 0" |
| 2016 | 69°F | 32°F | 0" | 0" |
| 2015 | 62°F | 25°F | 0" | 0" |
| 2014 | 70°F | 32°F | 0" | 0" |
| 2013 | 53°F | 35°F | 0.23" | 0" |
| 2012 | 68°F | 43°F | 0" | 0" |
| 2011 | 68°F | 39°F | 0.03" | -- |
| 2010 | 59°F | 38°F | 0" | 0" |
| 2009 | 73°F | 41°F | 0" | 0" |
| 2008 | 59°F | 28°F | 0" | 0" |
| 2007 | 64°F | 41°F | 0.25" | 0" |
| 2006 | 65°F | 28°F | 0" | 0" |
| 2005 | 42°F | 36°F | 4.29" | 0" |
| 2004 | 63°F | 38°F | 0.36" | 0" |
| 2003 | 66°F | 29°F | 0" | 0" |
| 2002 | 50°F | 28°F | 0.51" | 0" |
| 2001 | 51°F | 37°F | 0.51" | 0" |
| 2000 | 69°F | 27°F | 0" | 0" |
| 1999 | 65°F | 42°F | 0.91" | 0" |
| 1998 | 64°F | 28°F | 0" | 0" |
| 1997 | 65°F | 40°F | 1.52" | 0" |
| 1996 | 53°F | 34°F | 0" | 0" |
| 1995 | 47°F | 33°F | 0.18" | 0" |
| 1994 | 72°F | 41°F | 0" | 0" |
| 1993 | 64°F | 19°F | 0.2" | 0" |
| 1992 | 61°F | 28°F | 0" | 0" |
| 1991 | 53°F | 33°F | 0" | 0" |
| 1990 | 80°F | 41°F | 0" | 0" |
| 1989 | 85°F | 46°F | 0" | 0" |
| 1988 | 71°F | 31°F | 0" | 0" |
| 1987 | 61°F | 27°F | 0" | 0" |
| 1986 | 60°F | 30°F | 0" | 0" |
| 1985 | 63°F | 39°F | 0.13" | 0" |
| 1984 | 52°F | 39°F | 0.1" | 0" |
| 1983 | 65°F | 41°F | 0" | 0" |
| 1982 | 56°F | 25°F | 0" | 0" |
| 1981 | 67°F | 42°F | 0" | 0" |
| 1980 | 90°F | 39°F | 0" | 0" |
| 1979 | 69°F | 40°F | 0" | 0" |
| 1978 | 58°F | 29°F | 0" | 0" |
| 1977 | 68°F | 34°F | 0" | 0" |
| 1976 | 64°F | 30°F | 0" | 0" |
| 1975 | 58°F | 30°F | 0.08" | 0" |
| 1974 | 53°F | 39°F | 0.69" | 0" |
| 1973 | 45°F | 32°F | 0" | 0" |
| 1972 | 64°F | 30°F | 0" | 0" |
| 1971 | 54°F | 39°F | 0.53" | 0" |