Big Dam
Toole County, MT
MAYBE on Big Dam — light winds and rising pressure after a passing system for this window. Watch a front passing through and pressure swinging. Weather-only read (no on-water history calibrating this yet).
The current fishing-weather read for Big Dam in Toole County, MT is MAYBE, with the best four-hour window on Tue, Oct 27 from 11 PM to 3 AM (America/Denver). The main factor in its favor is dry conditions across the window, and the main watch-out is a front passing through. During that window the forecast calls for wind near 7 mph out of the northwest, gusting to 12 mph, surface pressure near 884 hPa on an unstable trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 36 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated October 26, 2026, 9:39 AM UTC, and reads refresh on a daily cadence. This is a weather-only read built from forecast weather alone; it does not yet use on-water reports, and confidence is capped until local water data or feedback exists.
Conditions at a glance
- Wind
- 7mph
NW · gust 12
- Rain / Weather
- 0in
Overcast
- Temp
- 36°F
2°C · hum 93%
- Pressure
- 26.10inHg
Unstable
7-Day Fishing Forecast
One read per day — the bite call, the window, the weather behind it
- MAYBEMon · Oct 26Window passedA front passing through43° / 28°F11 mph · Egust 260.00 in↓ -13.4 hPa
- MAYBETue · Oct 277 PM → 11 PMA front passing through41° / 36°F10 mph · NWgust 360.67 in↓ +0.3 hPa
- MAYBEWed · Oct 284 AM → 8 AMA front passing through37° / 28°F9 mph · NWgust 190.00 in↑ +13.3 hPa
- MAYBEThu · Oct 294 AM → 8 AMA front passing through34° / 27°F6 mph · Ngust 110.00 in↑ +2.8 hPa
- MAYBEFri · Oct 304 PM → 8 PMA front passing through41° / 28°F6 mph · SEgust 220.00 in↓ -12.4 hPa
- MAYBESat · Oct 314 AM → 8 AMA front passing through50° / 32°F6 mph · Wgust 140.00 in↓ +1.0 hPa
- MAYBESun · Nov 15 AM → 9 AMA front passing through50° / 36°F3 mph · Wgust 180.00 in↑ +3.1 hPa
Last 3 days
Recent context — what just happened
Weather-only read. Confidence is capped until local water data or feedback exists.
Nearby waters
- Gillespie Reservoir· Toole County, MT
- Walden Reservoir· Liberty County, MT
- Suphellen Reservoir· Toole County, MT
- Alkali Lake· Toole County, MT
- Moltz Lake· Toole County, MT
- Dunkirk Reservoir· Toole County, MT
Weather data by Open-Meteo — CC BY 4.0. Fishing Weather derives the fishing read.