Sioux Reservoir

Carter County, MT

MAYBEConfidence · Medium
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 Sioux Reservoir — 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).

Next forecast window
MAYBE

Fri · Sep 11, 7 AM → 11 AM (America/Denver)

Full read

The latest cached fishing-weather read for Sioux Reservoir in Carter 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 7 mph out of the west, gusting to 15 mph; surface pressure near 895 hPa on an unstable trend; 0.00 inches of rain; and air temperature near 77 °F with overcast dominant. Confidence in this cached read is medium; it was generated September 10, 2026, 1:21 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, 1:21 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
7mph

W · gust 15

Rain / Weather
0in

Overcast

Temp
77°F

25°C · hum 17%

Pressure
26.43inHg

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
    86° / 46°F
    7 mph · Wgust 22
    0.00 in
    ↓ -15.3 hPa
  2. Fri · Sep 11
    7 AM → 11 AM
    MAYBE
    A front passing through
    79° / 55°F
    7 mph · NWgust 27
    0.00 in
    ↑ +12.5 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    66° / 54°F
    7 mph · Ngust 29
    0.02 in
    ↓ 0.0 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    SKIP
    Extreme gusts
    61° / 50°F
    23 mph · Egust 40
    0.15 in
    ↓ -6.2 hPa
  5. Mon · Sep 14
    4 AM → 8 AM
    SKIP
    Extreme gusts
    63° / 46°F
    12 mph · Wgust 37
    0.04 in
    ↑ +13.1 hPa
  6. Tue · Sep 15
    7 AM → 11 AM
    MAYBE
    A front passing through
    59° / 41°F
    3 mph · Egust 22
    0.00 in
    ↓ +0.9 hPa
  7. Wed · Sep 16
    4 AM → 8 AM
    MAYBE
    A front passing through
    70° / 48°F
    5 mph · Egust 16
    0.00 in
    ↓ +0.2 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+14.1 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
12 mph · gust 42 · NW
Temperature
Cooler
-17.6°F over 72h84–48°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.