Updated October 2026
Nauvoo: Weather by Month and When to Go
Nauvoo is part of the Illinois state park system. The USGS Protected Areas Database maps about 150 acres under its name. Average highs range from 33°F in January to 85°F in July.
Average highs sit between 60°F and 80°F in April through May and September through October. They run above 80°F in June through August and below 60°F in November through March. The figures are NOAA climate normals for 1991–2020, measured at a weather station 6 miles from the park.
Warmest average high
85°F
July
Coldest average low
17°F
January
Most precipitation
5.2 in
June
Longest days
14.9 h
June
Nauvoo weather by month
| Month | Average high | Average low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 33°F | 17°F | 1.7 in | 6.1 in | 9.4 h |
| February | 38°F | 21°F | 1.9 in | 4.6 in | 10.4 h |
| March | 50°F | 32°F | 2.7 in | 1.7 in | 11.7 h |
| April | 62°F | 43°F | 4.0 in | 0.5 in | 13.1 h |
| May | 72°F | 54°F | 5.1 in | 0.0 in | 14.3 h |
| June | 82°F | 63°F | 5.2 in | 0.0 in | 14.9 h |
| July | 85°F | 68°F | 4.1 in | 0.0 in | 14.6 h |
| August | 84°F | 66°F | 3.8 in | 0.0 in | 13.6 h |
| September | 77°F | 57°F | 3.5 in | 0.0 in | 12.3 h |
| October | 64°F | 45°F | 3.1 in | 0.1 in | 10.9 h |
| November | 50°F | 33°F | 2.4 in | 0.8 in | 9.7 h |
| December | 38°F | 23°F | 1.9 in | 4.3 in | 9.1 h |
Temperature, precipitation and snowfall figures are NOAA climate normals for 1991–2020 from station USC00133007, the nearest station with a complete set of temperature normals, 6 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month. The acreage is what the USGS Protected Areas Database maps under the park's name. The state's own figure can differ, because the database may hold part of a park under another name.
What the averages show
- Temperature. July is the warmest month, with an average high of 85°F and an average low of 68°F. January is the coldest month, with an average low of 17°F and an average high of 33°F.
- Precipitation. June is the wettest month, averaging 5.2 inches of precipitation, and January is the driest, at 1.7 inches. An average year brings about 39.4 inches in total.
- Snowfall. The station averages 18.1 inches of snow a year, with the most in January (6.1 inches).
- Daylight. Days run from about 9.1 hours of daylight in December to 14.9 hours in June.
Camping, trails, maps and fees
Whether Nauvoo has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
Where to stay near Nauvoo
Hotels, cabins and vacation rentals near Nauvoo, with live availability and prices.
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Frequently Asked Questions
July is the warmest month, with an average high of 85°F and an average low of 68°F. January is the coldest month, with an average low of 17°F and an average high of 33°F. These are NOAA 1991–2020 climate normals from a weather station 6 miles from the park.
Average highs sit between 60°F and 80°F in April through May and September through October. They run above 80°F in June through August and below 60°F in November through March.
June is the wettest month, averaging 5.2 inches of precipitation, and January is the driest, at 1.7 inches. An average year brings about 39.4 inches in total. Snowfall averages 18.1 inches a year, with the most in January.
Days run from about 9.1 hours of daylight in December to 14.9 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Herbert Hoover National Historic Site78 miles away
- Lincoln Home National Historic Site105 miles away
- Gateway Arch National Park147 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official Illinois state park listing for the park's name.