Jim Reservoir

Valley County, MT

MAYBEConfidence · Medium
Best bite window
Wed · Oct 28, 6 AM → 10 AM (America/Denver)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Jim 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).

Full read

The current fishing-weather read for Jim Reservoir in Valley County, MT is MAYBE, with the best four-hour window on Wed, Oct 28 from 6 AM to 10 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 west, gusting to 15 mph, surface pressure near 926 hPa on an unstable 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 clear. Confidence in this read is medium; it was generated October 26, 2026, 9:55 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, 9:55 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
7mph

W · gust 15

Rain / Weather
0in

Clear

Temp
36°F

2°C · hum 84%

Pressure
27.34inHg

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° / 30°F
    11 mph · Egust 27
    0.00 in
    ↓ -13.4 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    48° / 37°F
    11 mph · SEgust 37
    0.23 in
    ↓ -6.0 hPa
  3. Wed · Oct 28
    6 AM → 10 AM
    MAYBE
    A front passing through
    48° / 36°F
    7 mph · Wgust 17
    0.00 in
    ↑ +11.4 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    39° / 30°F
    6 mph · NWgust 14
    0.00 in
    ↑ +6.2 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    52° / 32°F
    9 mph · Egust 30
    0.00 in
    ↓ -14.3 hPa
  6. Sat · Oct 31
    5 AM → 9 AM
    MAYBE
    A front passing through
    54° / 41°F
    3 mph · Ngust 16
    0.00 in
    ↑ +2.3 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 43°F
    5 mph · NWgust 15
    0.00 in
    ↓ +0.2 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+23.9 hPa over 72h
Rain
Light rain
0.09 in totallast 72h
Wind
Gusty
12 mph · gust 42 · NE
Temperature
Cooler
-16.9°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.

Jim Reservoir Fishing Forecast - 7-Day Windows (MT)