Post Lake

Sully County, SD

MAYBEConfidence · Medium
Best bite window
Thu · Jul 23, 8 PM → 12 AM (America/Chicago)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Post 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 Post Lake in Sully County, SD is MAYBE, with the best four-hour window on Thu, Jul 23 from 8 PM to 12 AM (America/Chicago). 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 6 mph out of the southeast, gusting to 16 mph, surface pressure near 953 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 68 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated July 23, 2026, 11:19 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 July 23, 2026, 11:19 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
6mph

SE · gust 16

Rain / Weather
0in

Overcast

Temp
68°F

20°C · hum 79%

Pressure
28.14inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    Now → 4 PM
    MAYBE
    A front passing through
    73° / 61°F
    12 mph · Sgust 28
    0.00 in
    ↓ -4.7 hPa
  2. Fri · Jul 24
    4 AM → 8 AM
    MAYBE
    A front passing through
    95° / 61°F
    4 mph · SWgust 21
    0.00 in
    ↓ -7.9 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    MAYBE
    A front passing through
    113° / 75°F
    4 mph · NWgust 35
    0.00 in
    ↓ -0.8 hPa
  4. Sun · Jul 26
    11 AM → 3 PM
    MAYBE
    A front passing through
    113° / 77°F
    7 mph · SWgust 36
    0.00 in
    ↓ -6.7 hPa
  5. Mon · Jul 27
    5 AM → 9 AM
    MAYBE
    A front passing through
    108° / 77°F
    6 mph · Ngust 36
    0.00 in
    ↑ +5.3 hPa
  6. Tue · Jul 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    102° / 81°F
    9 mph · Egust 22
    0.02 in
    ↓ +0.8 hPa
  7. Wed · Jul 29
    9 AM → 1 PM
    MAYBE
    A front passing through
    108° / 72°F
    7 mph · Wgust 28
    0.03 in
    ↓ -2.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+14.2 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
7 mph · gust 23 · NE
Temperature
Cooler
-16.7°F over 72h95–61°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.