Vanderzanden Reservoir

Washington County, OR

GOConfidence · Low
Best bite window
Thu · Jul 23, 12 PM → 4 PM (America/Los_Angeles)
Main reason
falling pressure ahead of a system

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

Full read

The current fishing-weather read for Vanderzanden Reservoir in Washington County, OR is GO, with the best four-hour window on Thu, Jul 23 from 12 PM to 4 PM (America/Los_Angeles). The main factor in its favor is falling pressure ahead of a system, with no loud weather risk flagged for this window. During that window the forecast calls for wind near 3 mph out of the northwest, gusting to 6 mph, surface pressure near 1009 hPa on a falling trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 81 °F, with a dominant forecast of clear. Confidence in this read is low; it was generated July 23, 2026, 11:24 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 July 23, 2026, 11:24 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
3mph

NW · gust 6

Rain / Weather
0in

Clear

Temp
81°F

27°C · hum 48%

Pressure
29.80inHg

Falling

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    12 PM → 4 PM
    GO
    Falling pressure ahead of a system
    84° / 63°F
    3 mph · NWgust 16
    0.00 in
    ↓ -1.2 hPa
  2. Fri · Jul 24
    2 PM → 6 PM
    GO
    Falling pressure ahead of a system
    86° / 57°F
    4 mph · Wgust 14
    0.00 in
    ↓ -2.4 hPa
  3. Sat · Jul 25
    8 AM → 12 PM
    GO
    Falling pressure ahead of a system
    81° / 54°F
    4 mph · Sgust 19
    0.00 in
    ↑ +3.6 hPa
  4. Sun · Jul 26
    10 AM → 2 PM
    GO
    Falling pressure ahead of a system
    86° / 55°F
    3 mph · Sgust 12
    0.00 in
    ↓ +0.7 hPa
  5. Mon · Jul 27
    11 AM → 3 PM
    GO
    Falling pressure ahead of a system
    84° / 54°F
    3 mph · SEgust 13
    0.00 in
    ↓ -1.3 hPa
  6. Tue · Jul 28
    2 PM → 6 PM
    GO
    Falling pressure ahead of a system
    86° / 54°F
    4 mph · NEgust 17
    0.00 in
    ↓ -3.0 hPa
  7. Wed · Jul 29
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    90° / 55°F
    4 mph · Ngust 19
    0.00 in
    ↓ -1.0 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
+3.0 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
3 mph · gust 17 · W
Temperature
Cooler
-0.2°F over 72h99–57°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.