Vanderzanden Reservoir

Washington County, OR

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 Vanderzanden 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

Fri · Sep 11, 8 AM → 12 PM (America/Los_Angeles)

Full read

The latest cached fishing-weather read for Vanderzanden Reservoir in Washington County, OR 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 3 mph out of the northeast, gusting to 10 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 September 10, 2026, 1:23 PM 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 September 10, 2026, 1:23 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
3mph

NE · gust 10

Rain / Weather
0in

Overcast

Temp
70°F

21°C · hum 63%

Pressure
29.80inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Sep 10
    Window passed
    MAYBE
    Dry conditions across the window
    75° / 54°F
    3 mph · NEgust 26
    0.00 in
    ↓ -1.9 hPa
  2. Fri · Sep 11
    8 AM → 12 PM
    MAYBE
    Dry conditions across the window
    66° / 50°F
    4 mph · Wgust 14
    0.06 in
    ↓ -3.6 hPa
  3. Sat · Sep 12
    8 AM → 12 PM
    MAYBE
    Dry conditions across the window
    63° / 54°F
    3 mph · Sgust 9
    0.22 in
    ↑ +3.3 hPa
  4. Sun · Sep 13
    9 AM → 1 PM
    MAYBE
    Dry conditions across the window
    70° / 50°F
    4 mph · Sgust 11
    0.00 in
    ↑ +2.9 hPa
  5. Mon · Sep 14
    2 PM → 6 PM
    MAYBE
    Dry conditions across the window
    75° / 46°F
    4 mph · NEgust 14
    0.00 in
    ↓ -2.7 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    84° / 50°F
    4 mph · Ngust 19
    0.00 in
    ↓ +0.9 hPa
  7. Wed · Sep 16
    4 AM → 8 AM
    MAYBE
    Dry conditions across the window
    90° / 55°F
    5 mph · Ngust 7
    0.00 in
    ↓ -1.1 hPa

Last 3 days

Recent context — what just happened

Pressure
Steady
-1.6 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
4 mph · gust 12 · NW
Temperature
Warmer
+7.4°F over 72h88–50°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.