Weather on October 18 at Theodore Roosevelt
Theodore Roosevelt National Park
Based on 51 years of data from Medora, ND
Elevation Note: Theodore Roosevelt sits at 2,600 ft. Expect temperatures 9°F cooler than the data shown below, which comes from Medora, ND at a lower elevation.
Planning Your Visit
October 18th in Theodore Roosevelt National Park (via Medora, ND) typically brings cool fall weather, with average highs around 59°F and lows near 31°F — a 28°F daily swing. Over 51 years of records, the warmest October 18th was in 2003 (65°F average), while the coldest was 2020 (25°F) — a 40°F range across recorded history. Precipitation has occurred on 22% of recorded October 18th dates, with snow falling 4% of the time. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Theodore Roosevelt? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 51°F | 33°F | 0" | -- |
| 2024 | 64°F | 40°F | 0.05" | -- |
| 2023 | 56°F | 44°F | 0" | -- |
| 2022 | 63°F | 26°F | 0" | -- |
| 2021 | 77°F | 34°F | -- | -- |
| 2020 | 33°F | 18°F | 0" | 0" |
| 2019 | 69°F | 31°F | 0" | 0" |
| 2018 | 70°F | 26°F | 0" | 0" |
| 2017 | 76°F | 38°F | 0" | -- |
| 2016 | 69°F | 34°F | -- | -- |
| 2015 | 62°F | 23°F | 0" | -- |
| 2014 | 56°F | 31°F | 0" | -- |
| 2013 | 45°F | 32°F | 0.09" | -- |
| 2012 | 53°F | 39°F | 0" | -- |
| 2011 | 57°F | 21°F | 0.13" | -- |
| 2010 | 55°F | 28°F | 0" | -- |
| 2009 | 71°F | 30°F | 0" | 0" |
| 2008 | 65°F | 27°F | 0" | 0" |
| 2007 | 49°F | 44°F | 0.03" | 0" |
| 2006 | 30°F | 24°F | 0.2" | 1" |
| 2005 | 54°F | 37°F | 0" | -- |
| 2004 | 50°F | 29°F | 0" | 0" |
| 2003 | 81°F | 50°F | 0" | 0" |
| 2002 | 54°F | 34°F | 0" | 0" |
| 2001 | 52°F | 34°F | -- | -- |
| 2000 | 83°F | 34°F | 0" | 0" |
| 1999 | 53°F | 20°F | 1.27" | 0" |
| 1998 | 51°F | 29°F | 0" | 0" |
| 1997 | 52°F | 35°F | -- | -- |
| 1996 | 59°F | 20°F | 0" | 0" |
| 1994 | 52°F | 47°F | 1.07" | 0" |
| 1993 | 54°F | 30°F | 0" | 0" |
| 1992 | 52°F | 21°F | 0" | 0" |
| 1990 | 57°F | 22°F | 0" | 0" |
| 1989 | 56°F | 14°F | 0" | 0" |
| 1988 | 54°F | 32°F | 0" | 0" |
| 1987 | 49°F | 30°F | 0" | 0" |
| 1986 | 77°F | 32°F | 0" | 0" |
| 1985 | 65°F | 28°F | 0" | 0" |
| 1982 | 70°F | 36°F | 0.25" | 0" |
| 1981 | 55°F | 33°F | 0" | 0" |
| 1980 | 51°F | 25°F | 0" | 0" |
| 1979 | 67°F | 41°F | 0.56" | 0" |
| 1978 | 61°F | 23°F | 0" | 0" |
| 1977 | 74°F | 26°F | 0" | 0" |
| 1976 | 44°F | 28°F | 0.64" | 1" |
| 1975 | 80°F | 35°F | 0" | 0" |
| 1974 | 72°F | 29°F | 0" | 0" |
| 1973 | -- | 37°F | 0" | 0" |
| 1972 | 38°F | 21°F | 0" | 0" |
| 1971 | 42°F | 34°F | 0.46" | 0" |