Videos Mayday: Water Temperatures April 8, 2018April 23, 2019 The Next Bite Spring, Walleye Water temps are key this time of year for catching the mega walleyes! Other Related Posts: Locations to Try on Lake Oahe Depending on Time of Year Check List for Fisherman for Winter open Water Fishing. Jigging Equipment to Try for Catching Walleyes in the Fall August Great Time to Open Water Trolling for Walleyes