Heupel Lake

McPherson County, SD

MAYBEConfidence · Low
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 Heupel Lake — 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 Heupel Lake in McPherson 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 southeast, gusting to 16 mph, surface pressure near 953 hPa on an unstable trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 32 °F, with a dominant forecast of fog. Confidence in this read is low; it was generated October 26, 2026, 9:40 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, 9:40 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
6mph

SE · gust 16

Rain / Weather
0in

Fog

Temp
32°F

0°C · hum 99%

Pressure
28.14inHg

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° / 32°F
    9 mph · NEgust 23
    0.29 in
    ↓ -7.5 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    43° / 32°F
    6 mph · SEgust 22
    0.00 in
    ↓ -11.6 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 41°F
    4 mph · NWgust 12
    0.00 in
    ↑ +5.3 hPa
  4. Thu · Oct 29
    11 AM → 3 PM
    MAYBE
    A front passing through
    59° / 39°F
    3 mph · SEgust 7
    0.00 in
    ↑ +6.4 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    54° / 37°F
    9 mph · NEgust 30
    0.00 in
    ↓ -2.7 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    61° / 45°F
    10 mph · SEgust 30
    0.00 in
    ↓ -8.2 hPa
  7. Sun · Nov 1
    4 PM → 8 PM
    MAYBE
    A front passing through
    64° / 48°F
    7 mph · SWgust 20
    0.00 in
    ↓ -1.8 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+21.8 hPa over 72h
Rain
Light rain
0.18 in totallast 72h
Wind
Gusty
11 mph · gust 40 · E
Temperature
Cooler
-25.4°F over 72h77–27°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.