Lake Wisconsin, WI

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A steel railway bridge stretches across the shimmering waters of Lake Wisconsin, its dark brown beams contrasting with the vivid green hillside beyond. Fluffy white clouds drift lazily against a bright blue sky, enhancing the tranquil atmosphere of the landscape.

Today’s Forecast:

☀
53°F
High: 56° | Low: 47°
Current Temperature
Clear
Station: KDLL
Observed at: 8:35 pm CDT on 9/26/26
Wind: 5 mph | Humidity: 90%

Tonight:Mostly cloudy, with a low around 47. East wind 0 to 5 mph.
Sunday:Partly sunny, with a high near 69. East wind 0 to 5 mph.
Sunday Night:Mostly cloudy, with a low around 53. North wind 0 to 5 mph.

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Today’s Report:

⛵ Boating

Excellent
  94 /100

Excellent for boating. High near 68°F. Low rain risk (5%).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for boating. High near 72°F. Low rain risk (1%).

🛶 Paddling

Excellent
  94 /100

Excellent for paddling. High near 68°F. Low rain risk (5%).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for paddling. High near 72°F. Low rain risk (1%).

🥾 Hiking

Excellent
  100 /100

Excellent for hiking. High near 68°F. Low rain risk (5%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for hiking. High near 72°F. Low rain risk (1%).

🐟 Fishing

Excellent
  100 /100

Excellent for fishing. High near 68°F. Low rain risk (5%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for fishing. High near 72°F. Low rain risk (1%).

About Lake Wisconsin

Lake Wisconsin is a broad stretch of the Wisconsin River between the Baraboo area and Lodi, with shoreline communities, bluffs, islands, boat landings, and plenty of room for a full day on the water. It is one of the best places in south-central Wisconsin for boating, fishing, paddling, lakeside stops, and a relaxed summer-day feel.

This is a place where the weather matters. A warm, calm day can be great for boating, fishing, paddling, or spending time along the shore. Wind can make open sections of the lake choppy, though, and summer thunderstorms can change water plans quickly. Checking the timing of wind, rain, and storms before heading out can make the difference between an easy lake day and a frustrating one.

Lake Wisconsin spans Sauk and Columbia counties and covers more than 7,000 acres, with public boat-landings access and a fishery that includes panfish, bass, northern pike, walleye, catfish, and trout. The surrounding area also gives you easy access to scenic overlooks, river towns, parks, and short drives toward Baraboo, Devil’s Lake, Merrimac, Lodi, and Prairie du Sac.

Okee, WI and Gibraltar Rock

Gibraltar Rock lookout with trees, a rock, and scenic view
Gibraltar Rock Scene by Tony Herman

And don’t forget about Okee, which is a small Lake Wisconsin community with an easygoing, close-to-the-water feel and quick access to boating, fishing, paddling, and lakeside time.

It also puts you near Gibraltar Rock State Natural Area, one of the area’s best spots for a short hike with a big payoff. The flat-topped bluff rises about 200 feet above the surrounding landscape and offers wide views across Lake Wisconsin, the Wisconsin River Valley, and the Baraboo Hills. It is a great option on a cooler or breezier day when being out on the water is less appealing, but it is worth paying attention to trail conditions, wind, and storms before heading up to the overlook.

Merrimac Ferry Rides

Just across the lake from Okee, the Merrimac Ferry is part of the experience of exploring the Lake Wisconsin area. The free ferry carries vehicles, cyclists, and pedestrians across the Wisconsin River between Okee and Merrimac, turning a simple crossing into a short scenic break with views of the water and surrounding bluffs.

The crossing takes only about seven minutes, though waits can be longer on busy summer weekends. Because service is seasonal and can be affected by weather or river conditions, it is smart to check the current ferry status before building it into your route. (Wisconsin Department of Transportation)

Make the Most of a Lake Wisconsin Day

Calm mornings are often the best time to get on the water. Paddlers can take advantage of lighter wind, anglers can get an early start, and boaters have a better chance of comfortable conditions before afternoon traffic and weather changes pick up.

When the lake is breezy, consider shifting to a shoreline walk, a scenic drive, a meal in a nearby river town, or a hike at a nearby park instead of pushing a small boat or paddle craft into rougher water. The area is close enough to other outdoor options that you do not have to let one weather change end the day.

Weather Tips for Lake Wisconsin

  • Wind: Wind is one of the biggest factors on Lake Wisconsin. Even a nice-looking day can get choppy on broader, exposed sections of the lake.
  • Thunderstorms: Summer storms can develop fast. Watch the timing, keep an eye on the sky, and get off the water early when lightning is possible.
  • Heat and sun: Open water reflects sunlight and offers little shade. Bring water, sunscreen, and a plan for breaks during hot afternoons.
  • River flow and water levels: Lake conditions can change with weather and river flow. After heavier rain, use extra caution around current, debris, ramps, and shoreline conditions.
  • Cooler seasons: Spring and fall can be great for fishing, hiking, and quiet lake views, but water remains cold longer than the air temperature may suggest.

Plan Around the Conditions

The best Lake Wisconsin days usually begin early and stay flexible. Use the calmer part of the day for boating or paddling, then save lunch, sightseeing, a shoreline stop, or a nearby hike for later. A good forecast helps, but paying attention to wind and storm timing is what really helps you get the most out of the lake.

7-Day Forecast for Lake Wisconsin:

☀
53°F
High: 56° | Low: 47°
Current Temperature
Clear
Station: KDLL
Observed at: 8:35 pm CDT on 9/26/26
Wind: 5 mph | Humidity: 90%
Sun ⛅
69° 53°
3%
Mon ⛅
72° 51°
1%
Tue 🌧
72° 58°
27%
Wed 🌧
70° 58°
71%
Thu 🌧
70° 51°
56%
Fri 🌧
66° 49°
28%
Sat 🌧
66° --°
18%

7-Day High Temperature Trend

69° Sun 72° Mon 72° Tue 70° Wed 70° Thu 66° Fri 66° Sat

7-Day Low Temperature Trend

53° Sun 51° Mon 58° Tue 58° Wed 51° Thu 49° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Sun 100 Mon 100 Tue 94 Wed 94 Thu 100 Fri 100 Sat
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 11:26 pm CDT