Ptarmigan Lake

Cook County, MN

GOConfidence · 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
falling pressure ahead of a system
Main risk
a front passing through

GO on Ptarmigan Lake — light winds and falling pressure ahead of a 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/Chicago)

Full read

The latest cached fishing-weather read for Ptarmigan Lake in Cook County, MN is GO. Its highlighted window has passed, so use the 7-day forecast below for the next available window. The main factor in its favor was falling pressure ahead of a system, 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 14 mph; surface pressure near 940 hPa on a falling trend; 0.00 inches of rain; and air temperature near 55 °F with clear dominant. Confidence in this cached read is medium; it was generated September 10, 2026, 1:17 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, 1:17 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
6mph

W · gust 14

Rain / Weather
0in

Clear

Temp
55°F

13°C · hum 74%

Pressure
27.76inHg

Falling

7-Day Fishing Forecast

One read per day — the bite call, the window, the weather behind it

  1. Thu · Sep 10
    Window passed
    GO
    A front passing through
    66° / 45°F
    6 mph · Wgust 18
    0.00 in
    ↓ -0.9 hPa
  2. Fri · Sep 11
    Now → 8 AM
    MAYBE
    A front passing through
    75° / 55°F
    10 mph · Sgust 34
    0.15 in
    ↓ -9.5 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    63° / 46°F
    7 mph · Wgust 30
    1.00 in
    ↑ +14.5 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    GO
    A front passing through
    57° / 41°F
    4 mph · NWgust 26
    0.00 in
    ↑ +7.4 hPa
  5. Mon · Sep 14
    4 AM → 8 AM
    GO
    A front passing through
    54° / 41°F
    5 mph · Egust 34
    0.48 in
    unstable
  6. Tue · Sep 15
    3 PM → 7 PM
    GO
    A front passing through
    54° / 46°F
    7 mph · NWgust 30
    0.00 in
    unstable
  7. Wed · Sep 16
    7 AM → 11 AM
    GO
    A front passing through
    55° / 43°F
    3 mph · Sgust 17
    0.00 in
    ↓ -2.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
-5.9 hPa over 72h
Rain
Light rain
0.06 in totallast 72h
Wind
Gusty
9 mph · gust 40 · SW
Temperature
Cooler
-9.0°F over 72h70–52°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.