Flat Lake

Marshall County, SD

MAYBEConfidence · Medium
Best bite window
Thu · Jul 23, 7 PM → 11 PM (America/Chicago)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Flat 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 Flat Lake in Marshall County, SD is MAYBE, with the best four-hour window on Thu, Jul 23 from 7 PM to 11 PM (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 17 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 70 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated July 23, 2026, 11:13 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, 11:13 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
7mph

S · gust 17

Rain / Weather
0in

Overcast

Temp
70°F

21°C · hum 64%

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
    7 PM → 11 PM
    MAYBE
    A front passing through
    75° / 55°F
    7 mph · Sgust 22
    0.00 in
    ↓ -4.9 hPa
  2. Fri · Jul 24
    7 PM → 11 PM
    MAYBE
    A front passing through
    86° / 63°F
    7 mph · SEgust 32
    0.03 in
    ↓ -6.9 hPa
  3. Sat · Jul 25
    5 AM → 9 AM
    MAYBE
    A front passing through
    100° / 70°F
    9 mph · Wgust 34
    0.00 in
    → +0.9 hPa
  4. Sun · Jul 26
    5 AM → 9 AM
    MAYBE
    A front passing through
    111° / 75°F
    10 mph · Sgust 25
    0.00 in
    ↓ -9.3 hPa
  5. Mon · Jul 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    100° / 72°F
    9 mph · NWgust 27
    0.00 in
    ↑ +8.0 hPa
  6. Tue · Jul 28
    7 AM → 11 AM
    MAYBE
    A front passing through
    99° / 68°F
    4 mph · NEgust 27
    0.00 in
    ↓ +1.7 hPa
  7. Wed · Jul 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    102° / 72°F
    7 mph · Sgust 27
    0.00 in
    ↓ -1.5 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+13.0 hPa over 72h
Rain
Dry stretch
0.04 in totallast 72h
Wind
Gusty
10 mph · gust 35 · NW
Temperature
Cooler
-14.9°F over 72h82–52°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.