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Photo: Milwaukee River and Swamp by Joshua Mayer from Madison, WI, USA (CC BY-SA 2.0) License

Milwaukee River and Swamp State Natural Area

Nature preserve · Campbellsport, Wisconsin

Live flow only — judge the water in person

Use caution

Live flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby.

  • Live streamflow is available but no water-temperature sensor is nearby.
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Live flow only — judge the water in person

Use caution

Live flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby.

  • Live streamflow is available but no water-temperature sensor is nearby. USGS gauge 04083545, as of Aug 22, 12:00 PM gauge-local time
Streamflow
39 ft³/s
discharge
Gage height
3.25 ft
water level

No official beach-advisory feed for Wisconsin yet — follow posted signs and local guidance.

Live, provisional data from USGS gauge Fond Du Lac River @ W. Arndt St. at Fond Du Lac,WI (19.2 mi away), as of Aug 22, 12:00 PM gauge-local time.

Weather at Milwaukee River and Swamp State Natural Area

H: 79° L: 60°
Sunny
Sunny
75°
|
Feels like 70°
Precipitation
6%
Humidity
56%
Wind
13 mph
UV Index
6.2
Water Conditions:
🏊Cool but swimmable🧴High UV - use sunscreen
12 AM
Clear
63°
3 AM
Partly Cloudy
60°
6 AM
Clear
60°
9 AM
Sunny
67°
12 PM
Sunny
75°
3 PM
Sunny
77°
6 PM
Sunny
78°
9 PM
Clear
65°

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Frequently asked questions

Where is Milwaukee River and Swamp State Natural Area?
Milwaukee River and Swamp State Natural Area is a nature preserve in Campbellsport, Wisconsin.
Can you swim at Milwaukee River and Swamp State Natural Area?
Live flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby. Checked August 22, 2026.
How is Milwaukee River and Swamp State Natural Area rated?
Milwaukee River and Swamp State Natural Area in Campbellsport, Wisconsin has an average visitor rating of 4.6 out of 5, based on 5 reviews.
What amenities does Milwaukee River and Swamp State Natural Area have?
Visitor-listed amenities at Milwaukee River and Swamp State Natural Area include camping-nearby.

Visitor Reviews

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Best Times to Visit

👍
Right Now
Good conditions for visiting
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Campbellsport, WI 53010

Campbellsport, Wisconsin 53010

Popular Times

Monday
Morning
6a
7a
8a
9a
10a
11a
Afternoon
12p
1p
2p
3p
4p
5p
Evening
6p
7p
8p
9p
10p
11p
Not busy
Moderate
Busy
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Amenities

Camping nearby