Cottonwood Slough

Codington County, SD

MAYBEConfidence · Medium
Best bite window
Tue · Oct 27, 4 AM → 8 AM (America/Chicago)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Cottonwood Slough — light winds and rising pressure after a passing system for this window. Watch a front passing through and pressure swinging. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for Cottonwood Slough in Codington County, SD is MAYBE, with the best four-hour window on Tue, Oct 27 from 4 AM to 8 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 east, gusting to 16 mph, surface pressure near 955 hPa on an unstable trend, and rainfall totaling 0.02 inches over the four hours. Air temperature in the window sits near 39 °F, with a dominant forecast of light drizzle. Confidence in this read is medium; it was generated October 26, 2026, 9:50 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, 9:50 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
6mph

E · gust 16

Rain / Weather
0.02in

Light drizzle

Temp
39°F

4°C · hum 99%

Pressure
28.20inHg

Unstable

7-Day Fishing Forecast

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

  1. Mon · Oct 26
    Window passed
    MAYBE
    A front passing through
    39° / 37°F
    10 mph · NEgust 29
    0.48 in
    ↓ -7.2 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    48° / 37°F
    6 mph · Egust 25
    0.04 in
    ↓ -9.6 hPa
  3. Wed · Oct 28
    5 PM → 9 PM
    MAYBE
    A front passing through
    63° / 50°F
    7 mph · NWgust 32
    0.18 in
    ↑ +2.6 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    61° / 43°F
    4 mph · Ngust 15
    0.00 in
    ↑ +6.6 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 39°F
    9 mph · NEgust 30
    0.00 in
    ↓ -0.9 hPa
  6. Sat · Oct 31
    2 PM → 6 PM
    MAYBE
    A front passing through
    54° / 46°F
    7 mph · SEgust 30
    0.02 in
    ↓ -7.0 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    A front passing through
    63° / 46°F
    7 mph · Sgust 26
    0.00 in
    ↓ -3.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+16.8 hPa over 72h
Rain
Light rain
0.24 in totallast 72h
Wind
Gusty
13 mph · gust 52 · E
Temperature
Cooler
-23.8°F over 72h73–34°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.