Square Island Lake

Brazoria County, TX

GOConfidence · Medium
Best bite window
Thu · Jul 23, 2 PM → 6 PM (America/Chicago)
Main reason
falling pressure ahead of a system

GO on Square Island Lake — light winds and falling pressure ahead of a system for this window. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for Square Island Lake in Brazoria County, TX is GO, with the best four-hour window on Thu, Jul 23 from 2 PM to 6 PM (America/Chicago). The main factor in its favor is falling pressure ahead of a system, with no loud weather risk flagged for this window. During that window the forecast calls for wind near 6 mph out of the northeast, gusting to 15 mph, surface pressure near 1009 hPa on a falling trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 86 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated July 23, 2026, 11:35 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 July 23, 2026, 11:35 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
6mph

NE · gust 15

Rain / Weather
0in

Overcast

Temp
86°F

30°C · hum 79%

Pressure
29.80inHg

Falling

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    2 PM → 6 PM
    GO
    Falling pressure ahead of a system
    88° / 81°F
    6 mph · NEgust 24
    0.26 in
    ↑ +3.1 hPa
  2. Fri · Jul 24
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    88° / 77°F
    6 mph · Sgust 24
    0.28 in
    ↑ +3.6 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    93° / 77°F
    4 mph · Sgust 16
    0.02 in
    → 0.0 hPa
  4. Sun · Jul 26
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    93° / 79°F
    4 mph · Sgust 15
    0.00 in
    ↓ -1.8 hPa
  5. Mon · Jul 27
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    95° / 77°F
    5 mph · SWgust 16
    0.00 in
    ↓ -3.9 hPa
  6. Tue · Jul 28
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    95° / 77°F
    6 mph · Sgust 19
    0.00 in
    → +0.4 hPa
  7. Wed · Jul 29
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    97° / 75°F
    6 mph · SWgust 18
    0.00 in
    ↑ +1.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
-4.7 hPa over 72h
Rain
Light rain
0.09 in totallast 72h
Wind
Calm wind
5 mph · gust 21 · W
Temperature
Warmer
+5.0°F over 72h99–75°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.