Sourdough Lake

Whatcom County, WA

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
falling pressure ahead of a system

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

Next forecast window
GO

Fri · Jul 24, 4 AM → 8 AM (America/Los_Angeles)

Full read

The latest cached fishing-weather read for Sourdough Lake in Whatcom County, WA 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 falling pressure ahead of a system. Its cached forecast evidence included wind near 3 mph out of the southeast, gusting to 5 mph; surface pressure near 941 hPa on a falling trend; 0.00 inches of rain; and air temperature near 75 °F with overcast dominant. Confidence in this cached read is low; it was generated July 23, 2026, 11:27 AM 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 July 23, 2026, 11:27 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
3mph

SE · gust 5

Rain / Weather
0in

Overcast

Temp
75°F

24°C · hum 45%

Pressure
27.79inHg

Falling

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    Window passed
    GO
    Falling pressure ahead of a system
    86° / 70°F
    3 mph · SEgust 15
    0.00 in
    ↓ -0.4 hPa
  2. Fri · Jul 24
    4 AM → 8 AM
    GO
    Falling pressure ahead of a system
    84° / 63°F
    4 mph · NEgust 16
    0.00 in
    ↓ -2.1 hPa
  3. Sat · Jul 25
    7 AM → 11 AM
    GO
    Falling pressure ahead of a system
    79° / 54°F
    3 mph · SWgust 19
    0.01 in
    ↓ +3.6 hPa
  4. Sun · Jul 26
    8 AM → 12 PM
    GO
    Falling pressure ahead of a system
    81° / 55°F
    3 mph · SWgust 15
    0.00 in
    ↓ -0.2 hPa
  5. Mon · Jul 27
    7 AM → 11 AM
    GO
    Falling pressure ahead of a system
    77° / 54°F
    3 mph · SWgust 7
    0.00 in
    ↓ +0.6 hPa
  6. Tue · Jul 28
    8 AM → 12 PM
    GO
    Falling pressure ahead of a system
    79° / 50°F
    3 mph · SWgust 6
    0.00 in
    ↓ -1.6 hPa
  7. Wed · Jul 29
    10 AM → 2 PM
    GO
    Falling pressure ahead of a system
    86° / 50°F
    3 mph · SWgust 9
    0.00 in
    ↓ -2.2 hPa

Last 3 days

Recent context — what just happened

Pressure
Falling
-2.0 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
3 mph · gust 12 · W
Temperature
Warmer
+8.8°F over 72h93–63°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.

Sourdough Lake Fishing Forecast - 7-Day Windows (WA)