Cottonwood Lake

Sully County, SD

MAYBEConfidence · Medium
Best bite window
Thu · Jul 23, 9 PM → 1 AM (America/Chicago)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Cottonwood 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 Cottonwood Lake in Sully County, SD is MAYBE, with the best four-hour window on Thu, Jul 23 from 9 PM to 1 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 7 mph out of the south, gusting to 16 mph, surface pressure near 949 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, 11:37 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, 11:37 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
7mph

S · gust 16

Rain / Weather
0in

Overcast

Temp
68°F

20°C · hum 85%

Pressure
28.02inHg

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
    75° / 61°F
    13 mph · Sgust 28
    0.00 in
    ↓ -5.3 hPa
  2. Fri · Jul 24
    4 AM → 8 AM
    MAYBE
    A front passing through
    95° / 64°F
    9 mph · Sgust 25
    0.00 in
    ↓ -7.7 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    MAYBE
    A front passing through
    111° / 73°F
    4 mph · NWgust 32
    0.01 in
    ↓ -1.1 hPa
  4. Sun · Jul 26
    10 AM → 2 PM
    MAYBE
    A front passing through
    113° / 77°F
    7 mph · SWgust 35
    0.00 in
    ↓ -6.5 hPa
  5. Mon · Jul 27
    5 AM → 9 AM
    MAYBE
    A front passing through
    109° / 79°F
    6 mph · Ngust 37
    0.00 in
    ↑ +5.1 hPa
  6. Tue · Jul 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    108° / 79°F
    11 mph · Egust 24
    0.00 in
    ↓ +2.4 hPa
  7. Wed · Jul 29
    6 AM → 10 AM
    MAYBE
    A front passing through
    108° / 77°F
    7 mph · SWgust 29
    0.00 in
    ↓ -2.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+13.9 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
9 mph · gust 23 · NE
Temperature
Cooler
-14.6°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.