Grinnell Lake

Carbon County, WY

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

MAYBE on Grinnell Lake — 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).

Full read

The current fishing-weather read for Grinnell Lake in Carbon County, WY is MAYBE, with the best four-hour window on Fri, Sep 11 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 north, gusting to 14 mph, surface pressure near 782 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 55 °F, with a dominant forecast of clear. Confidence in this read is medium; it was generated September 10, 2026, 1:28 PM 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 September 10, 2026, 1:28 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
7mph

N · gust 14

Rain / Weather
0in

Clear

Temp
55°F

13°C · hum 53%

Pressure
23.09inHg

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
    75° / 50°F
    12 mph · Wgust 27
    0.00 in
    ↓ -8.5 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    SKIP
    Extreme gusts
    73° / 59°F
    17 mph · Wgust 40
    0.04 in
    ↓ +0.3 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    77° / 50°F
    4 mph · Sgust 31
    0.07 in
    ↓ -3.1 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    MAYBE
    A front passing through
    79° / 57°F
    9 mph · Sgust 40
    0.01 in
    ↓ +1.0 hPa
  5. Mon · Sep 14
    7 PM → 11 PM
    MAYBE
    A front passing through
    68° / 46°F
    7 mph · NWgust 37
    0.00 in
    → +7.6 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    A front passing through
    70° / 45°F
    6 mph · Egust 24
    0.00 in
    ↓ -2.2 hPa
  7. Wed · Sep 16
    4 AM → 8 AM
    MAYBE
    A front passing through
    64° / 45°F
    7 mph · NWgust 14
    0.00 in
    ↑ +9.3 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+8.9 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
12 mph · gust 36 · W
Temperature
Cooler
-3.6°F over 72h75–43°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.