City of Portland Reservoir Number 4

Multnomah County, OR

MAYBEConfidence · Medium
Best bite window
Mon · Oct 26, 9 PM → 1 AM (America/Los_Angeles)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on City of Portland Reservoir Number 4 — light winds and rising pressure after a passing system for this window. Watch a front passing through. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for City of Portland Reservoir Number 4 in Multnomah County, OR is MAYBE, with the best four-hour window on Mon, Oct 26 from 9 PM to 1 AM (America/Los_Angeles). The main factor in its favor is dry conditions across the window, and the main watch-out is a front passing through. During that window the forecast calls for wind near 7 mph out of the southwest, gusting to 19 mph, surface pressure near 990 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 48 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated October 26, 2026, 9:47 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, 9:47 AM UTCBUCKET 2026-10-26ENGINE 0.7.0

Conditions at a glance

Wind
7mph

SW · gust 19

Rain / Weather
0in

Overcast

Temp
48°F

9°C · hum 95%

Pressure
29.23inHg

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
    A front passing through
    52° / 46°F
    9 mph · Sgust 25
    0.10 in
    ↑ +3.7 hPa
  2. Tue · Oct 27
    4 AM → 8 AM
    MAYBE
    A front passing through
    50° / 46°F
    4 mph · SWgust 20
    0.08 in
    ↓ -0.9 hPa
  3. Wed · Oct 28
    4 PM → 8 PM
    MAYBE
    A front passing through
    54° / 46°F
    7 mph · SWgust 25
    0.25 in
    → -0.2 hPa
  4. Thu · Oct 29
    12 PM → 4 PM
    MAYBE
    A front passing through
    55° / 43°F
    4 mph · Egust 12
    0.09 in
    ↓ -4.1 hPa
  5. Fri · Oct 30
    6 AM → 10 AM
    MAYBE
    A front passing through
    54° / 41°F
    3 mph · SEgust 8
    0.14 in
    → +1.3 hPa
  6. Sat · Oct 31
    4 AM → 8 AM
    MAYBE
    A front passing through
    46° / 43°F
    4 mph · SEgust 21
    0.40 in
    ↑ +3.3 hPa
  7. Sun · Nov 1
    3 PM → 7 PM
    MAYBE
    A front passing through
    52° / 41°F
    3 mph · Ngust 19
    0.02 in
    ↑ +3.5 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
-5.1 hPa over 72h
Rain
Wet stretch
0.55 in totallast 72h
Wind
Gusty
4 mph · gust 28 · S
Temperature
Warmer
+2.3°F over 72h57–39°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.