← Lake Guide46.82° N · 93.96° W

Minnesota

Roosevelt Lake

Anglers know Roosevelt Lake as a 1,505-acre Cass County lake in Minnesota; largemouth patterns turn with the calendar.

Surface
1,505acres
Primary species
Largemouth
§ 01Today on the water · Roosevelt Lakevia Open-Meteo · 13:45 local
Air temp
60.9°F
Barometric
29.91″
↑rising 24h(+0.17)
Wind
3mph
from WSW
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 77° · lo 53°

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

    ── light w wind · settled

  2. 2
    sepWed

    Stable window

    hi 78° · lo 59°

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

    ── light s wind · settled

  3. 3
    sepThu

    Stable window

    hi 87° · lo 59°

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

    ── light e wind

§ 04Field notesMinnesota

Where it is

Set in Cass County, Minnesota, Roosevelt Lake covers about 1,505 acres. Where the largemouth sit changes with the season, not the map.

Seasonal pattern

Spring. Early warming sends largemouth into the shallows to stage and spawn, the calmest sun-fed water leading the move.

Summer. Once the surface heats, fish slide toward deeper edges, shade, and main-body structure, and low light fishes best.

Fall. Cooler water brings forage and bass shallow again; fish range widely as they feed up.

Winter. Largemouth go deep and sluggish in cold water, so a slow, methodical approach is the safer bet.

Key structure

  • Hard-bottom and rock transitions
  • Submerged wood, brush, and laydown cover
  • Transitions from soft to hard bottom
  • Wind-pushed banks that gather forage

Read the season; the structure list only matters through that lens.

Forage

Largemouth follow the bait on Roosevelt Lake; the schools decide where the fish set up.

Access

Public access is spread around Roosevelt Lake; confirm current launch and water-level conditions through local sources.

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:00658087). 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