Sweet Grass County · reservoir · 357 acres
Upper Glaston Lake
Upper Glaston Lake is a reservoir in Sweet Grass County, Montana. FishableWaters aggregates every stocking record for this water from Montana's fish & wildlife agency; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Overcast
89°
63°
11 mph
14%
Fri
Overcast
92°
62°
13 mph
10%
Sat
Overcast
100°
65°
17 mph
2%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
No published stocking records yet. This water stays in our books — the ledger begins the hour its state agency publishes a record.
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Dead Beaver Creek1.0 mi
- Rock Creek1.6 mi
- Glass Lindsay Lakes Lower Reservoir2.0 mi
- Lower Glaston Lake2.0 mi
- Cayuse Creek2.5 mi
- Alkali Creek3.8 mi
- Wheeler Creek4.6 mi
- Sourdough Creek5.7 mi
Seasons, limits, and rules are the state's call — check the official MT regulations and buy your license before you go. We link the source; we never restate the rules.
Upper Glaston Lake fishing — FAQ
Do I need a license to fish Upper Glaston Lake?+
Yes — Montana requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Upper Glaston Lake?+
Upper Glaston Lake is a reservoir in Sweet Grass County, Montana. Driving directions and an interactive topo map are on this page.