Hell Roaring Lake

Gallatin County, MT

MAYBEConfidence · Medium
Best bite window
Fri · Sep 11, 10 PM → 2 AM (America/Denver)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Hell Roaring 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 Hell Roaring Lake in Gallatin County, MT is MAYBE, with the best four-hour window on Fri, Sep 11 from 10 PM to 2 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 northeast, gusting to 13 mph, surface pressure near 744 hPa on an unstable trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 39 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated September 10, 2026, 1:17 PM 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 September 10, 2026, 1:17 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
7mph

NE · gust 13

Rain / Weather
0in

Overcast

Temp
39°F

4°C · hum 88%

Pressure
21.97inHg

Unstable

7-Day Fishing Forecast

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

  1. Thu · Sep 10
    Window passed
    MAYBE
    A front passing through
    66° / 43°F
    11 mph · Wgust 29
    0.00 in
    ↓ -12.2 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 41°F
    1 mph · Egust 32
    0.00 in
    ↑ +5.7 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    63° / 36°F
    3 mph · SEgust 22
    0.00 in
    ↓ -4.9 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    MAYBE
    A front passing through
    48° / 30°F
    7 mph · SEgust 48
    0.06 in
    ↑ +4.9 hPa
  5. Mon · Sep 14
    4 AM → 8 AM
    MAYBE
    A front passing through
    52° / 28°F
    5 mph · SWgust 12
    0.02 in
    ↓ +3.0 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 28°F
    3 mph · SEgust 11
    0.00 in
    ↓ +3.8 hPa
  7. Wed · Sep 16
    11 AM → 3 PM
    MAYBE
    A front passing through
    61° / 30°F
    3 mph · Wgust 6
    0.00 in
    ↓ +0.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+12.5 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
14 mph · gust 35 · W
Temperature
Cooler
-1.3°F over 72h59–30°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.