Weather on September 21 at Voyageurs
Voyageurs National Park
Based on 55 years of data from International Falls, MN
Elevation Note: Voyageurs sits at 1,200 ft. Expect temperatures 4°F cooler than the data shown below, which comes from International Falls, MN at a lower elevation.
Planning Your Visit
September 21st in Voyageurs National Park (via International Falls, MN) typically brings mild fall weather, with average highs around 61°F and lows near 42°F. Over 55 years of records, the warmest September 21st was in 2015 (69°F average), while the coldest was 1974 (36°F) — a 33°F range across recorded history. Precipitation has occurred on 40% of recorded September 21st dates, with snow falling 2% of the time. The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Voyageurs? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 69°F | 59°F | -- | -- |
| 2024 | 76°F | 48°F | -- | -- |
| 2023 | 80°F | 51°F | -- | -- |
| 2022 | 56°F | 44°F | -- | -- |
| 2021 | 61°F | 42°F | -- | -- |
| 2020 | 79°F | 58°F | -- | -- |
| 2019 | 80°F | 50°F | 0" | 0" |
| 2018 | 58°F | 34°F | 2.18" | 0" |
| 2017 | 73°F | 45°F | -- | -- |
| 2016 | 64°F | 42°F | -- | -- |
| 2015 | 82°F | 55°F | -- | -- |
| 2014 | 64°F | 48°F | -- | -- |
| 2013 | 57°F | 41°F | 0.13" | 0" |
| 2012 | 52°F | 36°F | -- | -- |
| 2011 | 56°F | 49°F | 2.18" | 0" |
| 2010 | 58°F | 44°F | 0.2" | 0" |
| 2009 | 77°F | 54°F | 0" | 0" |
| 2008 | 58°F | 42°F | 0" | 0" |
| 2007 | 65°F | 48°F | -- | -- |
| 2006 | 63°F | 33°F | -- | -- |
| 2005 | 70°F | 41°F | -- | -- |
| 2004 | 64°F | 52°F | -- | -- |
| 2003 | 60°F | 53°F | -- | -- |
| 2002 | 60°F | 37°F | 0.05" | -- |
| 2001 | 63°F | 40°F | 0.03" | 0" |
| 2000 | 57°F | 28°F | 0" | 0" |
| 1999 | 49°F | 36°F | 0" | -- |
| 1998 | 52°F | 41°F | 0.13" | -- |
| 1997 | 68°F | 29°F | 0" | 0" |
| 1996 | 64°F | 54°F | 0.13" | 0" |
| 1995 | 45°F | 27°F | 0.03" | 0" |
| 1994 | 65°F | 51°F | 0.94" | 0" |
| 1993 | 55°F | 49°F | 0.08" | 0" |
| 1992 | 63°F | 36°F | 0" | 0" |
| 1991 | 69°F | 46°F | 0" | 0" |
| 1990 | 52°F | 43°F | 0.3" | 0" |
| 1989 | 57°F | 49°F | 1.7" | 0" |
| 1988 | 50°F | 40°F | 0.05" | 0" |
| 1987 | 66°F | 44°F | 0" | 0" |
| 1986 | 56°F | 48°F | 0.76" | 0" |
| 1985 | 57°F | 31°F | 0" | 0" |
| 1984 | 70°F | 48°F | 0" | 0" |
| 1983 | 47°F | 36°F | 0.18" | 0" |
| 1982 | 65°F | 29°F | 0" | 0" |
| 1981 | 63°F | 40°F | 0" | 0" |
| 1980 | 65°F | 42°F | 2.26" | 0" |
| 1979 | 64°F | 27°F | 0" | 0" |
| 1978 | 58°F | 34°F | 0" | 0" |
| 1977 | 63°F | 39°F | 0.05" | 0" |
| 1976 | 51°F | 30°F | 0" | 0" |
| 1975 | 55°F | 40°F | 0.08" | 0" |
| 1974 | 41°F | 31°F | 0.05" | 0.5" |
| 1973 | 45°F | 38°F | 3.28" | 0" |
| 1972 | 52°F | 27°F | 0" | 0" |
| 1971 | 52°F | 29°F | 0.05" | 0" |