When was Lake Elmo last stocked?

The latest reported stocking was Sep 14, 2026 (rainbow trout, 4,838 fish), according to Montana agency reports.

How often is Lake Elmo stocked?

Stocked 7 times in 2026, usually on Tuesdays, about every 29 days. Across all years on record, most stockings come in April.

Is Lake Elmo stocked often?

The most stocked water in Yellowstone County (13 stocking days on record). Stocked more often than 98% of Montana waters on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Lake Elmo?

Rainbow trout (7 stockings, 19,321 fish); Yellowstone cutthroat trout (6 stockings, 11,304 fish).

How warm is the water near Lake Elmo?

The nearest USGS gage read 47°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.

Lake Elmo trout stocking

Yellowstone County, Montana · lake · 3,194 ft elevation

Lake Elmo was last stocked 8 weeks ago (Sep 14, 2026). We have 13 stockings on record since Apr 8, 2025, 8 in the last 12 months (10,270 fish). Most stockings come in April. Species stocked: rainbow trout, Yellowstone cutthroat trout.

Last stocked

8 weeks ago

Sep 14, 2026

Next planned

Not announced

Last 12 months

8 stockings

10,270 fish

Water temperature

47°F

Cool for trout

The most stocked water in Yellowstone County (13 stocking days on record).
Stocked more often than 98% of Montana waters on our record.

River conditions

Nearest USGS gage: Yellowstone River at Billings MT (5 km away, on a different stream or lake).

Water temperature: 47°F
Flow: 3,150 cfs; about normal for the last six weeks
Gage height: 2.93 ft

Cool for trout. Trout are active but slower; fishing picks up as the water warms through the day.

Water temperature (daily high), last six weeks (°F), daily. Latest: 47 °F on Nov 8. The green band is the ideal range for trout.

Streamflow, last six weeks (cfs), daily. Latest: 3,190 cfs on Nov 8.

Latest reading Nov 9, 2026, 8:00 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Lake Elmo

Tonight
39°F
Mostly Cloudy
10% rain · wind 3 to 8 mph
Monday
60°F
Mostly Sunny
7% rain · wind 3 mph
Monday Night
40°F
Mostly Cloudy
6% rain · wind 2 to 9 mph
Tuesday
63°F
Partly Sunny
6% rain · wind 9 to 21 mph
Tuesday Night
37°F
Partly Cloudy
wind 9 mph
Veterans Day
65°F
Sunny
wind 8 to 12 mph

Forecast from the National Weather Service for this location, refreshed hourly.

When is Lake Elmo stocked?

Most stockings come in April. Stocked 7 times in 2026, usually on Tuesdays, about every 29 days.

By month, all years

Stockings of Lake Elmo by month, all years on record. This month is shown in blue.

Year by year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026		1	1	2	1	1			1
2025				2		1		1	1			1

What is stocked

Species	Stockings	Fish	Fish per stocking	Typical size
Rainbow trout	7	19,321	2,760	8.4 in
Yellowstone cutthroat trout	6	11,304	1,884	16.0 in

Stocking history

20267 stockings · 9,920 fish

Date	Species	Fish	Size	Since previous	Hatchery
Sep 14Latest Monday · 8 weeks ago	Rainbow trout	4,838	10.2 in	103 days	Bluewater Springs Trout Hatchery
Jun 3 Wednesday	Rainbow trout	464	8.4 in	29 days	Jocko River Trout Hatchery
May 5 Tuesday	Rainbow trout	1,410	8.1 in	2 weeks	Jocko River Trout Hatchery
Apr 21 Tuesday	Rainbow trout	1,533	7.9 in	1 week	Jocko River Trout Hatchery
Apr 14 Tuesday	Rainbow trout	1,425	7.7 in	19 days	Jocko River Trout Hatchery
Mar 26 Thursday	Yellowstone cutthroat trout	100	17.2 in	29 days	Yellowstone River Trout Hatchery
Feb 25 Wednesday	Yellowstone cutthroat trout	150	16.0 in	12 weeks	Yellowstone River Trout Hatchery

20256 stockings · 20,705 fish

Date	Species	Fish	Size	Since previous	Hatchery
Dec 3 Wednesday	Yellowstone cutthroat trout	350	9.5 in	79 days	Yellowstone River Trout Hatchery
Sep 15 Monday	Rainbow trout	4,851	9.1 in	33 days	Bluewater Springs Trout Hatchery
Aug 13 Wednesday	Yellowstone cutthroat trout	9,054	2.7 in	71 days	Yellowstone River Trout Hatchery
Jun 3 Tuesday	Yellowstone cutthroat trout	1,500	6.7 in	5 weeks	Yellowstone River Trout Hatchery
Apr 29 Tuesday	Rainbow trout	4,800	8.5 in	3 weeks	Bluewater Springs Trout Hatchery
Apr 8 Tuesday	Yellowstone cutthroat trout	150	17.2 in		Yellowstone River Trout Hatchery

From Montana fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Montana fishing regulations.

Where is Lake Elmo?

Yellowstone County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.

Directions Larger map Montana fishing regulations

Stocked waters near Lake Elmo

Shiloh Conservation Pond 1lake · 9 mistocked Aug 11, 2026
Canyon Creek Pondlake · 10 mistocked Aug 11, 2026
Laurel Pondlake · 19 mistocked Sep 1, 2026

All stocked waters in Yellowstone County Stocked this week in Montana

Questions about Lake Elmo

When was Lake Elmo last stocked?: The latest reported stocking was Sep 14, 2026 (rainbow trout, 4,838 fish), according to Montana agency reports.
How often is Lake Elmo stocked?: Stocked 7 times in 2026, usually on Tuesdays, about every 29 days. Across all years on record, most stockings come in April.
Is Lake Elmo stocked often?: The most stocked water in Yellowstone County (13 stocking days on record). Stocked more often than 98% of Montana waters on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Lake Elmo?: Rainbow trout (7 stockings, 19,321 fish); Yellowstone cutthroat trout (6 stockings, 11,304 fish).
How warm is the water near Lake Elmo?: The nearest USGS gage read 47°F on Nov 9. Trout are active but slower; fishing picks up as the water warms through the day.