Donelson Lake

Carbon 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 Donelson Lake — 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).

Full read

The current fishing-weather read for Donelson Lake in Carbon 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 4 mph out of the southeast, gusting to 11 mph, surface pressure near 700 hPa on a rising 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 September 10, 2026, 1:18 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, 1:18 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
4mph

SE · gust 11

Rain / Weather
0in

Overcast

Temp
36°F

2°C · hum 81%

Pressure
20.67inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Sep 10
    Window passed
    SKIP
    Extreme gusts
    57° / 36°F
    14 mph · NWgust 30
    0.00 in
    ↓ -11.2 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    MAYBE
    A front passing through
    50° / 36°F
    12 mph · Wgust 47
    0.00 in
    ↑ +6.0 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 32°F
    6 mph · Sgust 29
    0.00 in
    ↓ -2.6 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    MAYBE
    A front passing through
    45° / 28°F
    5 mph · Sgust 39
    0.03 in
    ↓ -0.1 hPa
  5. Mon · Sep 14
    3 PM → 7 PM
    MAYBE
    A front passing through
    43° / 23°F
    7 mph · Wgust 27
    0.00 in
    ↑ +7.3 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    A front passing through
    48° / 28°F
    4 mph · Sgust 22
    0.00 in
    ↓ +1.4 hPa
  7. Wed · Sep 16
    8 AM → 12 PM
    MAYBE
    A front passing through
    50° / 28°F
    4 mph · SWgust 10
    0.00 in
    ↓ +0.9 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
19 mph · gust 47 · W
Temperature
Cooler
-7.7°F over 72h52–28°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.