Wisconsin State Parks · Wisconsin
Nelson Dewey State Park
Wisconsin State Parks · Wisconsin, United States
- Sites
- 48
- Hookups
- 21 electric, 27 no hookups
- Group sites
- Yes
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Pets
- Yes
- Elevation
- 633 ft
- Dark sky
- Bortle class 2
- Cell coverage
- T-Mobile weak · Verizon weak · AT&T none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Cassville
- Address
- 12190 Co Hwy VV
- Activities
- Camping, Group Camping
Season dates aren't confirmed for this campground yet - opening and closing dates haven't been verified. Check the operator's page or call ahead before you plan a trip.
Site map
The imagery of the campground. Press and hold the map to drop your own pins and notes; the operator publishes no site points here. Your ratings, notes, pins and photos are kept with the campground on your Saved list, the same list the camping map and the drive page keep.
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About
Nelson Dewey State Park overlooks the Mississippi River near where it meets the Wisconsin River, on the grounds of Wisconsin's first governor's 19th-century estate. The 45-site family campground has 18 electric sites plus four walk-to sites with river views; three electric group sites hold up to 120 campers combined.
Fees
Wisconsin DNR statewide camping system: a vehicle admission sticker is required at every state park or forest entrance, including for registered campers - $28/year for Wisconsin residents ($13/year age 65+) or $50/year for non-residents, or $13/day resident / $16/day non-resident. Nightly campsite rates vary by electricity, amenities, location, site type, day of week and season, and are shown when you select a specific site during booking; non-resident campers pay a flat $15/night surcharge on top of the site's own rate. A $9.30 reservation fee applies per booking, plus a $10 cancellation fee or $6 change fee if plans change. Pets are allowed at this campground on a leash no longer than 8 feet at all times, per Wisconsin State Park System's statewide pet policy; owners must clean up and properly dispose of pet waste.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 27° | 10° | -15° | 49° | 11 of 11 |
| February | 32° | 16° | -16° | 63° | 11 of 11 |
| March | 46° | 30° | 4° | 75° | 11 of 11 |
| April | 59° | 40° | 24° | 79° | 5 of 11 |
| May | 70° | 53° | 36° | 87° | 0 of 11 |
| June | 81° | 64° | 51° | 93° | 0 of 11 |
| July | 83° | 68° | 61° | 92° | 0 of 11 |
| August | 80° | 66° | 58° | 89° | 0 of 11 |
| September | 78° | 61° | 47° | 89° | 0 of 11 |
| October | 61° | 46° | 30° | 78° | 2 of 10 |
| November | 45° | 32° | 7° | 70° | 6 of 10 |
| December | 36° | 24° | -10° | 69° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Frenchtown Park · City, County & Regional Parks · 9 mi · 3 sites
- Buck Creek · City, County & Regional Parks · 15 mi · 2 sites
- Grant River · Army Corps of Engineers · 16 mi · 74 sites
- Motor Mill Historic Site · City, County & Regional Parks · 18 mi · 5 sites
- Wyalusing State Park · Wisconsin State Parks · 18 mi · 114 sites
All public campgrounds in Wisconsin · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.