Northeast
Casselman River
Live Conditions
Casselman River — At Grantsville
7-Day Flow
↓ Falling
24-Hr Pressure
27.44 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
72° / 54°
Tomorrow
🌧️Rain
59° / 45°
0.26"
Thu
☁️Overcast
52° / 38°
Fri
🌦️Drizzle
56° / 36°
0.02"
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
One call. Specific to today's exact conditions on the Casselman River.
9
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Casselman River conditions.
🪰 Hatch Calendar
Casselman River · May · Late Spring
Showing typical dates — water temperature data unavailable for live hatch predictions.
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HENDRICKSON peak. Caddis. Sulphurs (size 16-18). Wild brookies in upper reaches active.
River Map
About Casselman River
The Casselman River near Grantsville in Garrett County is one of Maryland's premier native brook trout streams, flowing through a pastoral Allegheny valley with classic freestone character. The upper reaches hold wild, stream-born brook trout in clear, cold freestone runs, while the lower sections near Grantsville receive supplemental stocking and hold brown trout. The Casselman rewards anglers willing to slow down and work small pockets carefully.
Regulations
Standard Maryland statewide trout regulations apply. Trout season opens the last Saturday in March. Upper wild trout reaches may have special wild trout stream protections under Maryland DNR management — consult the current Freshwater Fishing Guide.