Black Calf Reservoir

Valley County, MT

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 Black Calf 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 · Jul 24, 4 AM → 8 AM (America/Denver)

Full read

The latest cached fishing-weather read for Black Calf Reservoir in Valley County, MT 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 4 mph out of the northeast, gusting to 7 mph; surface pressure near 915 hPa on a rising trend; 0.00 inches of rain; and air temperature near 63 °F with overcast dominant. Confidence in this cached read is low; it was generated July 23, 2026, 11:28 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, 11:28 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
4mph

NE · gust 7

Rain / Weather
0in

Overcast

Temp
63°F

17°C · hum 71%

Pressure
27.02inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    Window passed
    MAYBE
    A front passing through
    93° / 57°F
    4 mph · NEgust 18
    0.00 in
    ↓ -4.9 hPa
  2. Fri · Jul 24
    4 AM → 8 AM
    MAYBE
    A front passing through
    91° / 66°F
    7 mph · Wgust 28
    0.00 in
    ↓ -1.6 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    MAYBE
    A front passing through
    104° / 68°F
    4 mph · Sgust 25
    0.00 in
    ↓ -3.1 hPa
  4. Sun · Jul 26
    8 AM → 12 PM
    MAYBE
    A front passing through
    99° / 75°F
    11 mph · NWgust 29
    0.00 in
    ↑ +5.0 hPa
  5. Mon · Jul 27
    6 AM → 10 AM
    MAYBE
    A front passing through
    97° / 68°F
    4 mph · Sgust 17
    0.00 in
    ↓ -3.0 hPa
  6. Tue · Jul 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    93° / 72°F
    8 mph · NWgust 22
    0.00 in
    ↓ +0.7 hPa
  7. Wed · Jul 29
    4 AM → 8 AM
    MAYBE
    A front passing through
    99° / 72°F
    6 mph · Wgust 16
    0.00 in
    ↓ +2.8 hPa

Last 3 days

Recent context — what just happened

Pressure
Steady
+1.5 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Gusty
7 mph · gust 27 · NE
Temperature
Warmer
+7.7°F over 72h84–50°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.