Vienna Reservoir

Johnson County, IL

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

MAYBE on Vienna Reservoir — light winds and rising pressure after a passing system for this window. Watch weather-only read (no on-water history calibrating this yet). Weather-only read (no on-water history calibrating this yet).

Next forecast window
MAYBE

Tue · Oct 27, 10 AM → 2 PM (America/Chicago)

Full read

The latest cached fishing-weather read for Vienna Reservoir in Johnson County, IL 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. Its cached forecast evidence included wind near 4 mph out of the south, gusting to 5 mph; surface pressure near 1009 hPa on a rising trend; 0.00 inches of rain; and air temperature near 70 °F with overcast dominant. Confidence in this cached read is low; it was generated October 26, 2026, 9:19 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, 9:19 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
4mph

S · gust 5

Rain / Weather
0in

Overcast

Temp
70°F

21°C · hum 50%

Pressure
29.80inHg

Rising

7-Day Fishing Forecast

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

  1. Mon · Oct 26
    Window passed
    MAYBE
    Dry conditions across the window
    73° / 48°F
    4 mph · Sgust 6
    0.00 in
    ↓ -2.7 hPa
  2. Tue · Oct 27
    10 AM → 2 PM
    MAYBE
    Dry conditions across the window
    73° / 48°F
    4 mph · Sgust 8
    0.00 in
    ↓ -0.8 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    81° / 55°F
    4 mph · Sgust 17
    0.00 in
    ↓ +0.2 hPa
  4. Thu · Oct 29
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    81° / 54°F
    6 mph · Sgust 25
    0.00 in
    ↓ -0.5 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    77° / 57°F
    4 mph · Sgust 11
    0.00 in
    ↓ -1.3 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    64° / 59°F
    3 mph · Sgust 16
    0.12 in
    ↓ -2.3 hPa
  7. Sun · Nov 1
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    68° / 59°F
    4 mph · SEgust 14
    0.12 in
    ↓ -3.4 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+4.7 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
2 mph · gust 12 · E
Temperature
Warmer
+3.2°F over 72h77–43°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.