Wyoming · Lake fishing forecast

Yellowstone Lake fishing forecast today

Current conditions plus a 7-day fishing outlook for Yellowstone Lake, including Fishing Score, wind, pressure, clouds, rain chance and moon phase.

7.4/10
Good
Current Fishing Score

Weather-based index from the inputs available right now. It is a conditions summary, not a catch prediction.

100% weather data coverageFull inputs
Air temperature
41°F
Wind
5 mph SSW
Pressure
30.49 inHg
Nearby NWS observation
Cloud cover
12%
Rain chance
0%
Moon
Last Quarter
Gusts
7 mph
Humidity
79%
Feels like
38°F
Weather data updated: Oct 4, 2026, 7:47 AM MDT
Plan the week

Yellowstone Lake 7-day fishing forecast

Compare full-day forecast Fishing Scores with wind, rain risk, pressure and temperatures for the next seven days. These daily scores are separate from the live Current Fishing Score above.

Forecast data coverageDaily weather-score coverage ranges from 54% to 72%. Cards marked Partial are missing one or more weighted inputs.
Best available weather score · partialFriday, Oct 9 · 8.0/10
Today · full-day
Sunday, Oct 4
7.3/10
Partial
Sunny
65°43°
Wind5 mph SSWRain0%Clouds6%Moon42%
Mon
Monday, Oct 5
6.5/10
Partial
Mostly Sunny
65°43°
Wind4 mph SSWClouds30%Moon32%
Tue
Tuesday, Oct 6
6.1/10
Partial
Sunny
64°42°
Wind2 mph SWClouds8%Moon22%
Wed
Wednesday, Oct 7
6.2/10
Partial
Sunny
63°41°
Wind3 mph SSWClouds3%Moon14%
Thu
Thursday, Oct 8
5.9/10
Partial
Sunny
61°41°
Wind2 mph SWClouds5%Moon8%
Fri
Friday, Oct 9
8.0/10
Partial
Sunny
60°43°
Wind5 mph SSWRain1%Clouds16%Moon3%
Sat
Saturday, Oct 10
7.7/10
Partial
Mostly Sunny then Slight Chance Rain Showers
56°37°
Wind9 mph SSWRain52%Clouds42%Moon0%

The large Current Fishing Score above uses current conditions and, on eligible river pages, can include a conservative USGS streamflow penalty. The seven daily cards remain weather-only because this site does not predict future river flow. Cards marked “Partial” use less than 90% of the weighted weather inputs.

Yellowstone Lake fishing conditions overview

The current weather inputs produce a good weather-based Fishing Score. Moderate wind should add useful surface movement.

Estimated activity windows: 6:39 AM–8:54 AM and 5:28 PM–7:43 PM local time. These are dawn/dusk windows, not guaranteed bite times.

Best fishing time today: estimated windows

The first estimated window runs from 6:39 AM–8:54 AM, around sunrise at 7:24 AM. The second runs from 5:28 PM–7:43 PM, around sunset at 6:58 PM. Lower light can change visibility and fish positioning, but actual feeding periods vary by species, season and water conditions.

Yellowstone Lake fishing: structure, seasons and local conditions

High-elevation Yellowstone National Park lake with native cutthroat and lake trout. For fishing decisions, useful local reference areas include shoreline breaks, depth changes and wind-exposed water. Those features are more informative than treating the whole forecast area as one uniform piece of water. Cold or high-elevation water is part of the identity of Yellowstone Lake, so surface air temperature does not describe every depth equally. During warm periods, deeper or better-mixed water can remain a separate environment for cold-water species.

In Wyoming, spring warming, runoff or reservoir-level change can create fast transitions, while summer usually increases the importance of cooler water, depth and low-light periods. Fall cooling can reopen shallower habitat. For Yellowstone cutthroat trout and Lake trout, the exact timing is better judged from current weather and measured water conditions than from a fixed calendar date. On Yellowstone Lake, compare the daily score with the exposure of shoreline breaks, depth changes and wind-exposed water; those areas can respond very differently to the same wind and sun.

Common targets at Yellowstone Lake include Yellowstone cutthroat trout and Lake trout. They do not use depth, current and cover in exactly the same way, so the Fishing Score remains a conditions index rather than a species-specific bite prediction. There is no guarantee of a verified water sensor at the forecast point, so local temperature, clarity, level or current observations still matter.

What to watch in today's conditions

Wind

Current wind is about 5 mph from SSW, with gusts near 7 mph. Wind can improve surface movement on exposed banks while leaving coves and lee shorelines much calmer.

Barometric pressure

Barometric pressure is about 30.49 inHg. Pressure is one part of the Fishing Score and is read together with wind, cloud cover and precipitation.

Moon phase and light

The moon is currently in the Last Quarter phase with approximately 44% illumination. Lunar illumination has a smaller weight than the main weather factors.

Target species

Yellowstone cutthroat troutLake trout

Always verify current state fishing regulations, seasons, bag limits, licensing requirements and location-specific closures before fishing.

How this forecast is calculated

The Fishing Score starts with National Weather Service weather data: pressure 28%, wind 24%, cloud cover 18%, precipitation probability 18% and lunar illumination 12%. Missing weather factors are never treated as zero; partial weather results are pulled toward a neutral 5/10 according to the missing weight. On eligible river pages, a separate conservative USGS flow check can only reduce the current score when streamflow is unusually far from the long-term seasonal median or changing rapidly. It never increases the score.

Quick answers

Yellowstone Lake fishing forecast FAQ

What is the Fishing Score for Yellowstone Lake today?

The current Fishing Score is 7.4 out of 10 with 100% weighted data coverage. The weather inputs used by the score are currently complete.

What is the best fishing time at Yellowstone Lake today?

The page highlights estimated low-light windows of 6:39 AM–8:54 AM and 5:28 PM–7:43 PM local time, centered around sunrise and sunset. They are planning windows, not guaranteed bite times.

What fish are commonly targeted at Yellowstone Lake?

Common target species listed for Yellowstone Lake include Yellowstone cutthroat trout, Lake trout. Seasons, legal limits and local closures can change, so always verify current regulations before fishing.

What weather factors are used for Yellowstone Lake?

The Fishing Score uses barometric pressure and trend, wind, cloud cover, precipitation probability and moon illumination. Missing inputs are excluded rather than treated as zero.