Grass Lake

Edmunds County, SD

MAYBEConfidence · Medium
Best bite window
Fri · Sep 11, 4 AM → 8 AM (America/Chicago)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Grass 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 Grass Lake in Edmunds County, SD is MAYBE, with the best four-hour window on Fri, Sep 11 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 south, gusting to 17 mph, surface pressure near 954 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 63 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated September 10, 2026, 1:30 PM 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 September 10, 2026, 1:30 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
6mph

S · gust 17

Rain / Weather
0in

Overcast

Temp
63°F

17°C · hum 90%

Pressure
28.17inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Sep 10
    Window passed
    MAYBE
    A front passing through
    84° / 46°F
    9 mph · Sgust 19
    0.00 in
    ↓ -11.4 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    MAYBE
    A front passing through
    91° / 61°F
    6 mph · Sgust 37
    0.00 in
    ↓ +1.0 hPa
  3. Sat · Sep 12
    5 AM → 9 AM
    MAYBE
    A front passing through
    75° / 54°F
    7 mph · NWgust 30
    0.00 in
    ↑ +10.4 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    MAYBE
    A front passing through
    64° / 54°F
    8 mph · NEgust 25
    0.00 in
    ↓ -2.6 hPa
  5. Mon · Sep 14
    7 AM → 11 AM
    MAYBE
    A front passing through
    77° / 57°F
    6 mph · SEgust 29
    0.07 in
    ↓ -0.8 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    A front passing through
    68° / 46°F
    7 mph · NWgust 25
    0.00 in
    ↑ +9.4 hPa
  7. Wed · Sep 16
    4 AM → 8 AM
    MAYBE
    A front passing through
    72° / 50°F
    6 mph · Egust 14
    0.00 in
    ↓ -0.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+5.3 hPa over 72h
Rain
Wet stretch
0.57 in totallast 72h
Wind
Gusty
10 mph · gust 38 · W
Temperature
Cooler
-10.6°F over 72h86–57°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.