Rainbow Lake

Big Horn County, WY

MAYBEConfidence · Medium
Best bite window
Sat · Sep 12, 3 PM → 7 PM (America/Denver)
Main reason
dry conditions across the window
Main risk
a front passing through

MAYBE on Rainbow Lake — light winds and rising pressure after a passing system for this window. Watch a front passing through and pressure swinging. Weather-only read (no on-water history calibrating this yet).

Full read

The current fishing-weather read for Rainbow Lake in Big Horn County, WY is MAYBE, with the best four-hour window on Sat, Sep 12 from 3 PM to 7 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 7 mph out of the southwest, gusting to 25 mph, surface pressure near 665 hPa on an unstable trend, and rainfall totaling 0.00 inches over the four hours. Air temperature in the window sits near 48 °F, with a dominant forecast of overcast. Confidence in this read is medium; it was generated September 10, 2026, 1:19 PM 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 September 10, 2026, 1:19 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
7mph

SW · gust 25

Rain / Weather
0in

Overcast

Temp
48°F

9°C · hum 42%

Pressure
19.64inHg

Unstable

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
    54° / 30°F
    12 mph · NWgust 32
    0.00 in
    ↓ -11.8 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    SKIP
    Extreme gusts
    45° / 32°F
    19 mph · Wgust 54
    0.02 in
    ↑ +5.3 hPa
  3. Sat · Sep 12
    3 PM → 7 PM
    MAYBE
    A front passing through
    50° / 28°F
    7 mph · SWgust 25
    0.02 in
    ↓ -3.7 hPa
  4. Sun · Sep 13
    5 AM → 9 AM
    MAYBE
    A front passing through
    50° / 27°F
    7 mph · Sgust 35
    0.04 in
    ↓ -1.4 hPa
  5. Mon · Sep 14
    1 PM → 5 PM
    MAYBE
    A front passing through
    41° / 23°F
    7 mph · Wgust 34
    0.00 in
    ↑ +10.0 hPa
  6. Tue · Sep 15
    6 AM → 10 AM
    MAYBE
    A front passing through
    45° / 23°F
    7 mph · SWgust 16
    0.00 in
    ↓ -1.4 hPa
  7. Wed · Sep 16
    9 AM → 1 PM
    MAYBE
    A front passing through
    43° / 25°F
    3 mph · NWgust 12
    0.02 in
    ↓ +3.9 hPa

Last 3 days

Recent context — what just happened

Pressure
Unstable
+11.8 hPa over 72h
Rain
Dry stretch
0.02 in totallast 72h
Wind
Gusty
22 mph · gust 52 · W
Temperature
Cooler
-9.0°F over 72h46–27°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.