← Lake Guide43.11° N · 89.43° W

Wisconsin

Lake Mendota

Lake Mendota is a lake in Dane County, Wisconsin, where largemouth bass move between shallow cover and deeper water through the year.

Surface
9,788acres
Primary species
Largemouth
§ 01Today on the water · Lake Mendotavia Open-Meteo · 10:30 local
Air temp
69.1°F
Barometric
29.92″
↑rising 24h(+0.09)
Wind
3mph
from WNW
Moon
Waning Gibbous
day 19.4 · 77% lit

Air conditions sampled near the lake center, not measured on the water · refreshed ~15 min

§ 03Next 3 daysvia Open-Meteo · interpretation
  1. 1
    sepTue

    Stable window

    hi 91° · lo 69°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light w wind · settled

  2. 2
    sepWed

    Watch the wind

    hi 89° · lo 70°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── direction shift overnight

  3. 3
    sepThu

    Stable window

    hi 86° · lo 71°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light s wind

§ 04Field notesWisconsin

Where it is

Found in Dane County, Wisconsin, Lake Mendota totals about 9,788 acres. Largemouth work shallow-to-deep and back as conditions change through the year.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Bass settle on deeper edges and shaded cover after the surface warms, with first and last light the stronger times.

Fall. Falling water temperature draws bait and largemouth back shallow into a broad, roaming feed.

Winter. In cold water fish hold deep and inactive; ease off the pace and keep presentations quiet.

Key structure

  • Wind-pushed banks that gather forage
  • Weed edges and the clean lines along them
  • Flats sitting next to deeper water
  • Points where shallow water drops toward deeper water

The calendar decides which of these is worth time on a given day.

Forage

Baitfish movement steers the largemouth bite in Dane County far more than any fixed spot.

Access

You will find public access around Lake Mendota; ramp and launch conditions move with the season, so verify them locally.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

Data & references

  • Today's conditions — Open-Meteo, refreshed every ~15 min
  • Moon phase — local astronomical calculation, no external API
  • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:01569337). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
  • Regulations — verify current state and local regulations before fishing

Last revised · Back to Lake Guide