Big Grizzly Lake

Ravalli County, MT

MAYBEConfidence · Medium
Best bite window
Tue · Oct 27, 11 PM → 3 AM (America/Los_Angeles)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Big Grizzly Lake — 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).

Full read

The current fishing-weather read for Big Grizzly Lake in Ravalli County, MT is MAYBE, with the best four-hour window on Tue, Oct 27 from 11 PM to 3 AM (America/Los_Angeles). 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 5 mph out of the southwest, gusting to 8 mph, surface pressure near 787 hPa on an unstable trend, and rainfall totaling 0.01 inches over the four hours. Air temperature in the window sits near 23 °F, with a dominant forecast of snow. Confidence in this read is medium; it was generated October 26, 2026, 9:48 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.

UPDATED October 26, 2026, 9:48 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
5mph

SW · gust 8

Rain / Weather
0.01in

Snow

Temp
23°F

-5°C · hum 99%

Pressure
23.24inHg

Unstable

7-Day Fishing Forecast

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

  1. Mon · Oct 26
    Window passed
    MAYBE
    A front passing through
    46° / 28°F
    10 mph · Sgust 24
    0.86 in
    → +1.4 hPa
  2. Tue · Oct 27
    6 PM → 10 PM
    MAYBE
    A front passing through
    30° / 27°F
    9 mph · Wgust 32
    0.37 in
    ↓ -1.0 hPa
  3. Wed · Oct 28
    10 AM → 2 PM
    MAYBE
    A front passing through
    34° / 21°F
    6 mph · SWgust 12
    0.19 in
    ↑ +4.1 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    41° / 23°F
    3 mph · SEgust 9
    0.00 in
    ↓ -3.7 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    39° / 28°F
    6 mph · Egust 8
    0.11 in
    ↓ -0.3 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    39° / 25°F
    3 mph · SEgust 6
    0.04 in
    ↓ +1.5 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    A front passing through
    32° / 23°F
    4 mph · Sgust 7
    0.21 in
    ↑ +7.9 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+13.0 hPa over 72h
Rain
Wet stretch
0.75 in totallast 72h
Wind
Gusty
7 mph · gust 27 · S
Temperature
Cooler
-7.7°F over 72h45–23°F range

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

Nearby waters

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