Union Grove Lake

Tama County, IA

GOConfidence · Medium
Best bite window
Tue · Oct 27, 5 PM → 9 PM (America/Chicago)
Main reason
dry conditions across the window

GO on Union Grove Lake — light winds and steady pressure trend for this window. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for Union Grove Lake in Tama County, IA is GO, with the best four-hour window on Tue, Oct 27 from 5 PM to 9 PM (America/Chicago). The main factor in its favor is dry conditions across the window, with no loud weather risk flagged for this window. During that window the forecast calls for wind near 6 mph out of the southwest, gusting to 19 mph, surface pressure near 984 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 64 °F, with a dominant forecast of partly cloudy. Confidence in this read is medium; it was generated October 26, 2026, 9:21 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, 9:21 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
6mph

SW · gust 19

Rain / Weather
0in

Partly cloudy

Temp
64°F

18°C · hum 73%

Pressure
29.06inHg

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
    68° / 50°F
    9 mph · NEgust 25
    0.00 in
    ↓ -3.8 hPa
  2. Tue · Oct 27
    5 PM → 9 PM
    GO
    Dry conditions across the window
    70° / 54°F
    6 mph · SWgust 30
    0.00 in
    ↓ -3.1 hPa
  3. Wed · Oct 28
    4 AM → 8 AM
    GO
    Dry conditions across the window
    72° / 55°F
    6 mph · Sgust 39
    0.08 in
    ↓ -4.3 hPa
  4. Thu · Oct 29
    6 AM → 10 AM
    GO
    Dry conditions across the window
    68° / 55°F
    7 mph · Wgust 37
    0.06 in
    ↑ +8.2 hPa
  5. Fri · Oct 30
    4 AM → 8 AM
    GO
    Dry conditions across the window
    64° / 52°F
    6 mph · Egust 22
    0.00 in
    → +0.3 hPa
  6. Sat · Oct 31
    1 PM → 5 PM
    GO
    Dry conditions across the window
    59° / 52°F
    5 mph · SEgust 22
    0.36 in
    ↓ -4.2 hPa
  7. Sun · Nov 1
    5 PM → 9 PM
    GO
    Dry conditions across the window
    61° / 55°F
    4 mph · NEgust 7
    0.03 in
    ↓ -2.2 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
7 mph · gust 24 · SE
Temperature
Cooler
-2.7°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.