Spring Valley Lake

Union County, IA

GOConfidence · 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

GO on Spring Valley Lake — light winds and rising pressure after a passing system for this window. Weather-only read (no on-water history calibrating this yet).

Next forecast window
GO

Tue · Oct 27, 4 AM → 8 AM (America/Chicago)

Full read

The latest cached fishing-weather read for Spring Valley Lake in Union County, IA is GO. 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. Its cached forecast evidence included wind near 4 mph out of the northeast, gusting to 14 mph; surface pressure near 988 hPa on a rising trend; 0.00 inches of rain; and air temperature near 52 °F with overcast dominant. Confidence in this cached read is low; it was generated October 26, 2026, 9:34 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, 9:34 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
4mph

NE · gust 14

Rain / Weather
0in

Overcast

Temp
52°F

11°C · hum 87%

Pressure
29.18inHg

Rising

7-Day Fishing Forecast

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

  1. Mon · Oct 26
    Window passed
    GO
    Dry conditions across the window
    73° / 52°F
    4 mph · NEgust 15
    0.00 in
    ↓ -4.3 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    GO
    Dry conditions across the window
    68° / 57°F
    5 mph · Sgust 17
    0.00 in
    ↓ -1.9 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    GO
    Dry conditions across the window
    75° / 55°F
    7 mph · Sgust 38
    0.11 in
    ↓ -3.4 hPa
  4. Thu · Oct 29
    5 AM → 9 AM
    GO
    Dry conditions across the window
    70° / 57°F
    6 mph · Wgust 38
    0.00 in
    ↑ +6.4 hPa
  5. Fri · Oct 30
    10 AM → 2 PM
    GO
    Dry conditions across the window
    68° / 57°F
    7 mph · Egust 22
    0.44 in
    ↓ -0.1 hPa
  6. Sat · Oct 31
    8 AM → 12 PM
    GO
    Dry conditions across the window
    59° / 55°F
    5 mph · SWgust 22
    0.33 in
    ↓ -2.8 hPa
  7. Sun · Nov 1
    11 AM → 3 PM
    GO
    Dry conditions across the window
    63° / 55°F
    3 mph · Sgust 10
    0.02 in
    ↓ -1.9 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+4.3 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
6 mph · gust 23 · SE
Temperature
Warmer
+2.3°F over 72h77–50°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.