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FISHING REPORTS

Lake Koshkonong

Rock County, Wisconsin
moon phase
water temp
72.0°F
Sun times displayed in . Last water temp report: 6/1/26.

Displaying 1 to 10 of 8,583 posts
6/1/26 @ 5:56 PM
FISHING REPORT
Raw65
User since 10/13/16
Partly Sunny
Water: 72°
Docks
First time fishing the rock river where it flows out of Koshkonong and caught at least fifty or so small white bass and a couple decent sized ones. Lost a couple nice drum and a smallmouth at the boat. We hooked into two fish that were huge one that broke off and one that came off after a short time but we didn’t get to see either. Everything was caught on a jig head with a white twister tail. 

5/28/26 @ 6:33 PM
FISHING REPORT
daleracefan
PRO MEMBER User since 3/27/02
Sunny 70°
Water: 70°
Dragged 16th ounce jigs today with crawlers and leeches, had six wall eyes, three of which were 18 inches, one was 15 inches, one was 14 inches one was 12 inches, two sheepshead and one white bass

5/18/26 @ 12:49 PM
FISHING REPORT
svitreum
svitreum
PRO MEMBER User since 8/29/06
80°
Water: 68°
Trolled Saturday afternoon from 4 til 7. 6 eyes, 2 keepers. Very little else. Fish were where I typically find them at this time of year. Yo-Zuri's and shallow flicker shads got the most bites. Lost 2 pretty close to the boat that might've measured out. Best trolling speed was 2.7-2.9. Water temp was 68. Only going to get better.

Jimmy

5/16/26 @ 8:39 AM
svitreum
svitreum
PRO MEMBER User since 8/29/06
Planning on launching this afternoon for the first troll of the year. Does anyone know if the pier is in at Dallman's? Thx.

Jimmy

4/20/26 @ 11:13 AM
Crappie1234
User since 1/6/21
Are you still able to launch at groeller with all the flooding? 

4/16/26 @ 1:28 PM
TOMMY-2-TONE
User since 7/1/01
Piers are now pulled out at the Bluff. High water. Park closed at Blackhawk Island. T-2-T

4/12/26 @ 8:37 AM
TOMMY-2-TONE
User since 7/1/01
Craig at 6pm tomorrow night, 4-13

4/12/26 @ 8:34 AM
TOMMY-2-TONE
User since 7/1/01
Pier in at the Bluff. No Wake should kick in on the river today. 8 foot it kicks in. It's at 7.97 and rising. DNR meeting at Craig High School for Rock County. Not sure about Dane and Jefferson County's. I'll be welcoming Veterans to fish with me again this year. It's been a pleasure in the past. Only regret I haven't kept a journal.  I'm not a guide, I charge o. If you need to get in contact with me, you always can ask Brian at Bait Box. T-2-T

4/8/26 @ 10:23 PM
SmallieHunter92
SmallieHunter92
User since 8/25/14
Also want to point out that island bar's website says their launch is open monday-thursday. That won't do me any good, ​unfortunately.

Edit: Sorry, meant to post this ​on the Blackhawk island thread. Won't let me delete the post.

4/8/26 @ 10:21 PM
SmallieHunter92
SmallieHunter92
User since 8/25/14
Hey all, two questions if you've got the time. Wondering if any of the boat launches have docks in? I know groeler road does, but that parking can get difficult. Any help appreciated. I don't mind running across the lake.

That leads to my second question. How safe is it to run across kosh? I know there are a few marked rocks on navionics. There's also these dotted areas that I'm not familiar with? My humminbird charts don't have either the rocks, or the dotted areas. Would love to know what I'm looking at. Also just want to know how carefully I need to proceed. 

Thanks for any info you can provide 

Displaying 1 to 10 of 8,583 posts
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