Sylvan Lake

Custer County, SD

MAYBEConfidence · Low
Best bite window
The highlighted window has passed. This read is still based on the latest cached weather; use the 7-Day forecast below for the next window.
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Sylvan 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).

Next forecast window
MAYBE

Tue · Oct 27, 6 PM → 10 PM (America/Denver)

Full read

The latest cached fishing-weather read for Sylvan Lake in Custer County, SD is MAYBE. Its highlighted window has passed, so use the 7-day forecast below for the next available window. The main factor in its favor was dry conditions across the window, while the main watch-out was a front passing through. Its cached forecast evidence included wind near 5 mph out of the east, gusting to 9 mph; surface pressure near 833 hPa on an unstable trend; 0.00 inches of rain; and air temperature near 28 °F with fog dominant. Confidence in this cached read is low; it was generated October 26, 2026, 9:41 AM UTC, and reads refresh on a daily cadence. This is a weather-only read built from forecast weather; it does not yet use on-water reports, and confidence is capped until local water data or feedback exists.

UPDATED October 26, 2026, 9:41 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
5mph

E · gust 9

Rain / Weather
0in

Fog

Temp
28°F

-2°C · hum 98%

Pressure
24.60inHg

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
    34° / 28°F
    5 mph · Egust 14
    0.02 in
    ↓ -9.5 hPa
  2. Tue · Oct 27
    6 PM → 10 PM
    MAYBE
    A front passing through
    54° / 34°F
    4 mph · Egust 48
    0.00 in
    ↓ -4.8 hPa
  3. Wed · Oct 28
    7 AM → 11 AM
    MAYBE
    A front passing through
    52° / 37°F
    3 mph · Wgust 16
    0.01 in
    ↑ +6.4 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 36°F
    6 mph · Wgust 25
    0.00 in
    ↑ +5.1 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    A front passing through
    52° / 37°F
    4 mph · NEgust 21
    0.00 in
    ↓ -6.8 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    63° / 43°F
    4 mph · Wgust 19
    0.00 in
    ↓ -4.9 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    A front passing through
    55° / 41°F
    6 mph · NWgust 11
    0.00 in
    ↑ +2.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+19.9 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
9 mph · gust 35 · N
Temperature
Cooler
-24.7°F over 72h68–28°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.