Vienna Reservoir

Johnson County, IL

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
falling pressure ahead of a system

GO on Vienna Reservoir — light winds and falling pressure ahead of a system for this window. Weather-only read (no on-water history calibrating this yet).

Next forecast window
GO

Fri · Jul 24, 2 PM → 6 PM (America/Chicago)

Full read

The latest cached fishing-weather read for Vienna Reservoir in Johnson County, IL 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 falling pressure ahead of a system. Its cached forecast evidence included wind near 7 mph out of the northeast, gusting to 14 mph; surface pressure near 1003 hPa on a falling trend; 0.00 inches of rain; and air temperature near 68 °F with clear dominant. Confidence in this cached read is low; it was generated July 23, 2026, 11:18 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 July 23, 2026, 11:18 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
7mph

NE · gust 14

Rain / Weather
0in

Clear

Temp
68°F

20°C · hum 69%

Pressure
29.62inHg

Falling

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    Window passed
    GO
    Falling pressure ahead of a system
    79° / 63°F
    7 mph · NEgust 14
    0.00 in
    → +1.4 hPa
  2. Fri · Jul 24
    2 PM → 6 PM
    GO
    Falling pressure ahead of a system
    81° / 64°F
    3 mph · SEgust 11
    0.00 in
    ↓ -0.6 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    90° / 66°F
    4 mph · SEgust 19
    0.00 in
    ↓ -3.6 hPa
  4. Sun · Jul 26
    7 AM → 11 AM
    GO
    Falling pressure ahead of a system
    99° / 73°F
    7 mph · SWgust 25
    0.03 in
    ↓ -4.2 hPa
  5. Mon · Jul 27
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    100° / 77°F
    7 mph · SWgust 35
    0.00 in
    ↓ -7.5 hPa
  6. Tue · Jul 28
    6 AM → 10 AM
    GO
    Falling pressure ahead of a system
    95° / 75°F
    8 mph · Wgust 35
    0.00 in
    ↑ +7.2 hPa
  7. Wed · Jul 29
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    88° / 66°F
    6 mph · NEgust 22
    0.00 in
    ↑ +3.3 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+5.1 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
4 mph · gust 19 · NW
Temperature
Cooler
-8.3°F over 72h93–68°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.