Don Castro Reservoir

Alameda County, CA

GOConfidence · 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

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

Next forecast window
GO

Fri · Sep 11, 4 AM → 8 AM (America/Los_Angeles)

Full read

The latest cached fishing-weather read for Don Castro Reservoir in Alameda County, CA is GO. 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 west, gusting to 7 mph; surface pressure near 1000 hPa on a steady trend; 0.00 inches of rain; and air temperature near 77 °F with clear dominant. Confidence in this cached read is low; it was generated September 10, 2026, 1:17 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, 1:17 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
4mph

W · gust 7

Rain / Weather
0in

Clear

Temp
77°F

25°C · hum 43%

Pressure
29.53inHg

Steady

7-Day Fishing Forecast

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

  1. Thu · Sep 10
    Window passed
    GO
    Dry conditions across the window
    84° / 61°F
    4 mph · Wgust 14
    0.00 in
    ↓ -0.8 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    GO
    Dry conditions across the window
    70° / 54°F
    3 mph · NWgust 14
    0.00 in
    ↓ -2.3 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    GO
    Dry conditions across the window
    66° / 61°F
    6 mph · SWgust 17
    0.00 in
    ↑ +3.1 hPa
  4. Sun · Sep 13
    8 AM → 12 PM
    GO
    Dry conditions across the window
    73° / 57°F
    3 mph · NWgust 7
    0.00 in
    ↓ -2.5 hPa
  5. Mon · Sep 14
    10 AM → 2 PM
    GO
    Dry conditions across the window
    77° / 59°F
    4 mph · Wgust 10
    0.00 in
    ↓ -0.2 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    GO
    Dry conditions across the window
    73° / 57°F
    4 mph · Sgust 6
    0.00 in
    ↑ +2.7 hPa
  7. Wed · Sep 16
    9 AM → 1 PM
    GO
    Dry conditions across the window
    75° / 59°F
    4 mph · Wgust 6
    0.00 in
    → +1.6 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+0.2 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
4 mph · gust 13 · NW
Temperature
Warmer
+20.7°F over 72h97–54°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.