As of September 23, 2024, the Bighorn River in Montana is offering some excellent fishing opportunities, despite the approaching winter season.

**Current Weather Conditions:**
The weather in the Fort Smith area is expected to be cool, with temperatures ranging from the mid-40s to the mid-60s Fahrenheit. Wind speeds are moderate, around 10-15 mph, and there is a slight chance of precipitation, which could affect the water clarity.

**Water Conditions:**
The Bighorn River is currently flowing at about 2,500 cubic feet per second (cfs), which is relatively stable and favorable for fishing. The water temperature is around 54 degrees Fahrenheit, and the clarity is good, although drifting algae can still be an issue below the 3-Mile Access.

**Best Fishing Spots:**
For today, the best spots to fish are likely to be near the Afterbay and the stretches between Afterbay and 3-Mile Island. Boat fishermen have been doing well in these areas, despite some algae issues. Wading is also a good option, especially in the shallower sections where fish are more active.

**Bait and Tackle Recommendations:**
Given the current hatches and fish behavior, nymphing remains the most consistent method. Recommended nymph patterns include PMD and sowbug imitations such as the #16 Crack Back PMD, #18 Black Perdigon, and #16 BTS PMD Nymph. For dry fly fishing, look for fish eating PMD spinners, Pale Olive Baetis, and Tricos in the morning, and black caddis in the afternoon and evening. Hoppers are also effective midday.

For those preferring streamers, the water temperature is slowly rising, making it a good time to try streamers like the #4 Articulated Goldy or #4 Dirty Hippie.

**Fish Activity:**
Fish are active throughout the day but tend to be more picky in the mornings. As the day warms up, they become more aggressive. Look for fish feeding on the surface during PMD hatches and in the deeper pools and runs where they are likely to be holding.

**Local Tips and Regulations:**
Local anglers and guides recommend being patient and precise with your casts, especially during dry fly fishing. The fish are spread out, and you may not see large pods of risers, but the PMD hatch is providing good opportunities.

There are no major closures or restrictions currently in place, but always check for any local regulations regarding catch limits and spawning areas. Rainbows are still avoiding their spawning redds, so it's important to respect these areas.

**Best Times for Fishing:**
The best times for fishing today would be early morning for Tricos and PMD spinners, midday for hoppers, and late afternoon to evening for black caddis. Streamer fishing can be effective throughout the day, especially on cloudy days.

In summary, the Bighorn River is in great shape for fishing, with a variety of fly patterns and techniques that can yield excellent results. Just remember to check the local weather and water conditions before you head out, and always practice catch-and-release fishing to help preserve this incredible fishery.