Old Thunder Slough

Blaine County, MT

MAYBEConfidence · Low
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 Old Thunder Slough — 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, 4 AM → 8 AM (America/Denver)

Full read

The latest cached fishing-weather read for Old Thunder Slough in Blaine 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 4 mph out of the southwest, gusting to 19 mph; surface pressure near 926 hPa on a rising trend; 0.00 inches of rain; and air temperature near 63 °F with overcast dominant. Confidence in this cached read is low; it was generated September 10, 2026, 1:25 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, 1:25 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
4mph

SW · gust 19

Rain / Weather
0in

Overcast

Temp
63°F

17°C · hum 49%

Pressure
27.34inHg

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
    84° / 50°F
    8 mph · Wgust 29
    0.00 in
    ↓ -5.1 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    MAYBE
    A front passing through
    64° / 52°F
    4 mph · Ngust 19
    0.09 in
    ↑ +11.6 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 48°F
    4 mph · Ngust 14
    0.12 in
    ↓ +1.4 hPa
  4. Sun · Sep 13
    7 PM → 11 PM
    MAYBE
    A front passing through
    54° / 46°F
    11 mph · Egust 28
    0.37 in
    ↓ -8.4 hPa
  5. Mon · Sep 14
    6 PM → 10 PM
    MAYBE
    A front passing through
    57° / 48°F
    7 mph · Wgust 24
    0.04 in
    ↑ +9.7 hPa
  6. Tue · Sep 15
    11 AM → 3 PM
    MAYBE
    A front passing through
    61° / 46°F
    4 mph · NWgust 11
    0.00 in
    ↑ +4.7 hPa
  7. Wed · Sep 16
    8 AM → 12 PM
    MAYBE
    A front passing through
    68° / 46°F
    4 mph · SWgust 10
    0.00 in
    ↓ -2.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+4.9 hPa over 72h
Rain
Wet stretch
1.89 in totallast 72h
Wind
Gusty
13 mph · gust 54 · W
Temperature
Cooler
-3.8°F over 72h77–46°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.