Grass Valley Reservoir

Garfield County, CO

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
Main risk
a front passing through

MAYBE on Grass Valley Reservoir — 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).

Next forecast window
MAYBE

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

Full read

The latest cached fishing-weather read for Grass Valley Reservoir in Garfield County, CO 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, while the main watch-out was a front passing through. Its cached forecast evidence included wind near 7 mph out of the east, gusting to 16 mph; surface pressure near 798 hPa on a rising trend; 0.00 inches of rain; and air temperature near 63 °F with clear dominant. Confidence in this cached read is low; it was generated September 10, 2026, 1:24 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, 1:24 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
7mph

E · gust 16

Rain / Weather
0in

Clear

Temp
63°F

17°C · hum 21%

Pressure
23.56inHg

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
    A front passing through
    81° / 50°F
    7 mph · Egust 16
    0.00 in
    ↓ -8.6 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    MAYBE
    A front passing through
    79° / 61°F
    4 mph · Egust 30
    0.00 in
    ↓ -1.4 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    MAYBE
    A front passing through
    82° / 50°F
    3 mph · NEgust 19
    0.09 in
    ↓ -0.3 hPa
  4. Sun · Sep 13
    8 AM → 12 PM
    MAYBE
    A front passing through
    81° / 55°F
    4 mph · Sgust 30
    0.24 in
    ↓ -0.7 hPa
  5. Mon · Sep 14
    9 AM → 1 PM
    MAYBE
    A front passing through
    77° / 52°F
    3 mph · Sgust 21
    0.61 in
    ↓ +4.2 hPa
  6. Tue · Sep 15
    11 AM → 3 PM
    MAYBE
    A front passing through
    72° / 50°F
    4 mph · Wgust 20
    0.14 in
    ↓ +2.5 hPa
  7. Wed · Sep 16
    9 AM → 1 PM
    MAYBE
    A front passing through
    77° / 48°F
    3 mph · Sgust 17
    0.00 in
    ↓ +3.5 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+6.9 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
8 mph · gust 31 · NW
Temperature
Cooler
-0.7°F over 72h81–52°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.