Rush Lake in Day County: How and When to Fish It

• Overview

  Rush Lake lies in Day County, in South Dakota. The ground round it is rolling bush. At 4.4 sq miles you are fishing a fraction of it whatever you do. Around 7.8 miles of bank, which is a long day on foot. Webster sits 7.6 miles from the bank. Beyond it, Sisseton at 26 miles and Watertown at 34 miles. This one is safely inside the county line.

• Where to Fish on Rush Lake

  We hold no survey for this water; read the slope of the shoreline instead. The shallow end warms first and pulls fish in ahead of the rest. Read the surface for the wind lane, then fish the edge of it. Public occurrence data for Day County names common carp, black bullhead and green sunfish. Take it as the county picture rather than a promise for this water. On Rush Lake the obvious spot is not always the productive one.

• Seasonal Patterns

  The year swings from about 10°F in January to roughly 71°F in July. Four clear seasons, with a proper winter at one end. Ice is part of the season here, ending near mid April. Ice usually gives way near mid April, and forms again about late November. The strongest runs come at either end of the open season. Expect Rush Lake to follow that timing.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. It formed naturally, so levels move with rainfall rather than with a gate. Public mapping records no formal access here, so plan for a walk and soft ground. Read any posted signs at the access point rather than assuming. Where tickets apply, they are sold in the nearest town rather than on the bank. Minnewasta Lake, 2.7 miles away, makes the obvious fallback. Nothing here settles the position at Rush Lake for certain.