Rattlesnake Reservoir

Yellowstone 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 Rattlesnake Reservoir — 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, Now → 8 AM (America/Denver)

Full read

The latest cached fishing-weather read for Rattlesnake Reservoir in Yellowstone 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 6 mph out of the west, gusting to 9 mph; surface pressure near 898 hPa on a rising trend; 0.00 inches of rain; and air temperature near 77 °F with clear dominant. Confidence in this cached read is medium; it was generated September 10, 2026, 1:27 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, 1:27 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
6mph

W · gust 9

Rain / Weather
0in

Clear

Temp
77°F

25°C · hum 14%

Pressure
26.52inHg

Rising

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
    90° / 50°F
    6 mph · Wgust 25
    0.00 in
    ↓ -11.7 hPa
  2. Fri · Sep 11
    Now → 8 AM
    MAYBE
    A front passing through
    73° / 55°F
    7 mph · SWgust 27
    0.00 in
    ↑ +12.2 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    66° / 54°F
    9 mph · NEgust 27
    0.00 in
    ↓ -2.1 hPa
  4. Sun · Sep 13
    4 PM → 8 PM
    MAYBE
    A front passing through
    63° / 50°F
    7 mph · NEgust 30
    0.04 in
    ↓ -5.2 hPa
  5. Mon · Sep 14
    7 PM → 11 PM
    MAYBE
    A front passing through
    70° / 48°F
    13 mph · Egust 32
    0.00 in
    ↑ +11.4 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    A front passing through
    66° / 45°F
    4 mph · NEgust 21
    0.00 in
    ↓ +0.1 hPa
  7. Wed · Sep 16
    6 PM → 10 PM
    MAYBE
    A front passing through
    72° / 48°F
    4 mph · SEgust 16
    0.00 in
    ↓ -0.5 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+11.3 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
11 mph · gust 30 · W
Temperature
Cooler
-7.9°F over 72h81–46°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.