Arrastra Lake

Park County, MT

MAYBEConfidence · Medium
Best bite window
Tue · Oct 27, 11 PM → 3 AM (America/Denver)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Arrastra Lake — 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 Arrastra Lake in Park County, MT is MAYBE, with the best four-hour window on Tue, Oct 27 from 11 PM to 3 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 south, gusting to 20 mph, surface pressure near 745 hPa on an unstable trend, and rainfall totaling 0.01 inches over the four hours. Air temperature in the window sits near 21 °F, with a dominant forecast of snow. Confidence in this read is medium; it was generated October 26, 2026, 9:54 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, 9:54 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
7mph

S · gust 20

Rain / Weather
0.01in

Snow

Temp
21°F

-6°C · hum 95%

Pressure
22.00inHg

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
    41° / 28°F
    9 mph · SWgust 39
    0.14 in
    ↓ -6.8 hPa
  2. Tue · Oct 27
    1 PM → 5 PM
    SKIP
    Extreme gusts
    28° / 23°F
    14 mph · SWgust 36
    0.22 in
    → +1.4 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    30° / 16°F
    6 mph · SEgust 19
    0.00 in
    ↑ +4.5 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    39° / 19°F
    6 mph · SEgust 16
    0.00 in
    ↓ +1.6 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    45° / 23°F
    6 mph · SEgust 27
    0.01 in
    ↓ -9.5 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    37° / 27°F
    6 mph · Sgust 16
    0.03 in
    ↓ +2.4 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    A front passing through
    36° / 19°F
    6 mph · SEgust 16
    0.11 in
    ↓ +0.3 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+16.6 hPa over 72h
Rain
Light rain
0.34 in totallast 72h
Wind
Gusty
8 mph · gust 40 · SW
Temperature
Cooler
-13.9°F over 72h45–19°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.