Big Rock Reservoir

Phillips County, MT

MAYBEConfidence · Low
Best bite window
Now → 5 PM (America/Denver)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Big Rock 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).

Full read

The current fishing-weather read for Big Rock Reservoir in Phillips County, MT is MAYBE, with the best four-hour window on Thu, Jul 23 from 1 PM to 5 PM (America/Denver). 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 6 mph out of the north, gusting to 17 mph, surface pressure near 928 hPa on a rising trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 97 °F, with a dominant forecast of overcast. Confidence in this read is low; it was generated July 23, 2026, 11:18 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 July 23, 2026, 11:18 AM UTCBUCKET 2026-07-23ENGINE 0.7.0

Conditions at a glance

Wind
6mph

N · gust 17

Rain / Weather
0in

Overcast

Temp
97°F

36°C · hum 21%

Pressure
27.40inHg

Rising

7-Day Fishing Forecast

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

  1. Thu · Jul 23
    Now → 5 PM
    MAYBE
    A front passing through
    99° / 68°F
    6 mph · Ngust 17
    0.00 in
    ↓ -3.5 hPa
  2. Fri · Jul 24
    7 PM → 11 PM
    MAYBE
    A front passing through
    99° / 73°F
    6 mph · Ngust 34
    0.00 in
    ↓ -2.4 hPa
  3. Sat · Jul 25
    4 AM → 8 AM
    MAYBE
    A front passing through
    108° / 79°F
    3 mph · Wgust 34
    0.00 in
    ↓ -2.2 hPa
  4. Sun · Jul 26
    4 AM → 8 AM
    MAYBE
    A front passing through
    104° / 79°F
    5 mph · Wgust 22
    0.00 in
    ↓ +3.1 hPa
  5. Mon · Jul 27
    9 AM → 1 PM
    MAYBE
    A front passing through
    102° / 75°F
    4 mph · SEgust 16
    0.00 in
    ↓ -3.1 hPa
  6. Tue · Jul 28
    4 AM → 8 AM
    MAYBE
    A front passing through
    99° / 77°F
    9 mph · NWgust 23
    0.00 in
    ↓ +1.4 hPa
  7. Wed · Jul 29
    8 AM → 12 PM
    MAYBE
    A front passing through
    102° / 75°F
    3 mph · NEgust 24
    0.00 in
    ↓ +1.3 hPa

Last 3 days

Recent context — what just happened

Pressure
Steady
+0.5 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
8 mph · gust 24 · E
Temperature
Warmer
+6.8°F over 72h91–61°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.