Lake Elwell

Toole County, MT

MAYBEConfidence · Medium

Best bite window

The highlighted window has passed. This read is still based on the latest cached weather; use the 7-Day forecast below for the next window.

Main reason

dry conditions across the window

Main risk

a front passing through

MAYBE on Lake Elwell — light winds and rising pressure after a passing system for this window. Watch a front passing through. Weather-only read (no on-water history calibrating this yet).

Next forecast window

MAYBE

Fri · Sep 11, 8 AM → 12 PM (America/Denver)

Full read

The latest cached fishing-weather read for Lake Elwell in Toole County, MT is MAYBE. Its highlighted window has passed, so use the 7-day forecast below for the next available window. The main factor in its favor was dry conditions across the window, while the main watch-out was a front passing through. Its cached forecast evidence included wind near 6 mph out of the north, gusting to 21 mph; surface pressure near 898 hPa on a rising trend; 0.00 inches of rain; and air temperature near 61 °F with overcast dominant. Confidence in this cached read is medium; it was generated September 10, 2026, 1:00 PM UTC, and reads refresh on a daily cadence. This is a weather-only read built from forecast weather; it does not yet use on-water reports, and confidence is capped until local water data or feedback exists.

UPDATED September 10, 2026, 1:00 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind: 6mph
N · gust 21
Rain / Weather: 0in
Overcast
Temp: 61°F
16°C · hum 56%
Pressure: 26.52inHg
Rising

7-Day Fishing Forecast

One read per day — the bite call, the window, the weather behind it

Thu · Sep 10
Window passed
MAYBE
A front passing through
75° / 54°F
9 mph · SWgust 27
0.00 in
↓ -3.4 hPa
Fri · Sep 11
8 AM → 12 PM
MAYBE
A front passing through
57° / 48°F
6 mph · NWgust 18
0.07 in
↑ +11.8 hPa
Sat · Sep 12
4 AM → 8 AM
MAYBE
A front passing through
52° / 48°F
7 mph · Egust 16
0.01 in
↓ -1.2 hPa
Sun · Sep 13
5 PM → 9 PM
MAYBE
A front passing through
50° / 43°F
15 mph · NEgust 35
0.44 in
↓ -3.7 hPa
Mon · Sep 14
7 PM → 11 PM
MAYBE
A front passing through
59° / 43°F
7 mph · NWgust 22
0.07 in
↑ +5.9 hPa
Tue · Sep 15
4 AM → 8 AM
MAYBE
A front passing through
55° / 48°F
5 mph · Egust 12
0.04 in
↑ +5.2 hPa
Wed · Sep 16
4 AM → 8 AM
MAYBE
A front passing through
68° / 45°F
5 mph · SWgust 11
0.00 in
↓ -3.3 hPa

Last 3 days

Recent context — what just happened

Pressure

Rising

+0.1 hPa over 72h

Rain

Wet stretch

1.68 in totallast 72h

Wind

Gusty

14 mph · gust 48 · W

Temperature

Warmer

+1.3°F over 72h73–45°F range

Weather-only read. Confidence is capped until local water data or feedback exists.

About Lake Elwell

Surface area: 17,678 acres
Managing agency: U.S. Bureau of Reclamation
Dam: Tiber Dam (Marias River)

Primary species: Walleye, Northern pike, Yellow perch, Rainbow trout.

Nearby waters

White Elephant Reservoir· Chouteau County, MT
M Ratzburg Reservoir· Toole County, MT
Walden Reservoir· Liberty County, MT
Dunkirk Reservoir· Toole County, MT
Ovens Reservoir· Toole County, MT
Wanken Reservoir· Toole County, MT

Weather data by Open-Meteo — CC BY 4.0. Fishing Weather derives the fishing read.