Shamrock Lake

Tuolumne County, CA

GOConfidence · Medium
Best bite window
Tue · Oct 27, 10 PM → 2 AM (America/Los_Angeles)
Main reason
dry conditions across the window

GO on Shamrock Lake — light winds and rising pressure after a passing system for this window. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for Shamrock Lake in Tuolumne County, CA is GO, with the best four-hour window on Tue, Oct 27 from 10 PM to 2 AM (America/Los_Angeles). The main factor in its favor is dry conditions across the window, with no loud weather risk flagged for this window. During that window the forecast calls for wind near 5 mph out of the south, gusting to 12 mph, surface pressure near 705 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 23 °F, with a dominant forecast of clear. Confidence in this read is medium; it was generated October 26, 2026, 9:19 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, 9:19 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
5mph

S · gust 12

Rain / Weather
0in

Clear

Temp
23°F

-5°C · hum 42%

Pressure
20.82inHg

Rising

7-Day Fishing Forecast

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

  1. Mon · Oct 26
    Window passed
    MAYBE
    Dry conditions across the window
    41° / 28°F
    12 mph · SWgust 28
    0.00 in
    ↓ -2.2 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    43° / 25°F
    11 mph · Sgust 29
    0.00 in
    ↓ +0.1 hPa
  3. Wed · Oct 28
    8 AM → 12 PM
    GO
    Dry conditions across the window
    46° / 21°F
    4 mph · Sgust 7
    0.00 in
    ↓ -1.2 hPa
  4. Thu · Oct 29
    7 AM → 11 AM
    GO
    Dry conditions across the window
    43° / 25°F
    4 mph · Sgust 16
    0.00 in
    ↓ -3.3 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    GO
    Dry conditions across the window
    36° / 19°F
    4 mph · Sgust 17
    0.02 in
    ↑ +3.6 hPa
  6. Sat · Oct 31
    7 AM → 11 AM
    GO
    Dry conditions across the window
    36° / 18°F
    4 mph · Sgust 14
    0.00 in
    ↓ +1.3 hPa
  7. Sun · Nov 1
    9 AM → 1 PM
    GO
    Dry conditions across the window
    43° / 18°F
    4 mph · SWgust 8
    0.00 in
    ↓ +0.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
+2.5 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
11 mph · gust 48 · SE
Temperature
Warmer
+4.5°F over 72h48–23°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.