Four O'Clock Reservoir

Blaine 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 Four O'Clock 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

Tue · Oct 27, 4 AM → 8 AM (America/Denver)

Full read

The latest cached fishing-weather read for Four O'Clock Reservoir 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 northeast, gusting to 8 mph; surface pressure near 895 hPa on an unstable trend; 0.00 inches of rain; and air temperature near 28 °F with overcast dominant. Confidence in this cached read is medium; it was generated October 26, 2026, 9:47 AM 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 October 26, 2026, 9:47 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
4mph

NE · gust 8

Rain / Weather
0in

Overcast

Temp
28°F

-2°C · hum 77%

Pressure
26.43inHg

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° / 27°F
    4 mph · NEgust 25
    0.00 in
    ↓ -13.2 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    43° / 34°F
    5 mph · SWgust 45
    0.23 in
    ↓ -1.6 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    45° / 30°F
    7 mph · Wgust 23
    0.00 in
    ↑ +11.7 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    36° / 28°F
    4 mph · NEgust 9
    0.00 in
    ↑ +4.6 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    45° / 30°F
    6 mph · Egust 25
    0.00 in
    ↓ -13.7 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    54° / 36°F
    5 mph · SWgust 18
    0.00 in
    ↑ +2.4 hPa
  7. Sun · Nov 1
    9 AM → 1 PM
    MAYBE
    A front passing through
    54° / 37°F
    4 mph · SWgust 12
    0.00 in
    ↓ +0.6 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+21.2 hPa over 72h
Rain
Light rain
0.28 in totallast 72h
Wind
Gusty
11 mph · gust 45 · N
Temperature
Cooler
-25.4°F over 72h54–27°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.