Updated

Gunpowder Falls State Park Hammerman Area
State park · Middle River, Maryland
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion.
- Water temp 53°F (12°C)
- Streamflow 1 ft³/s
- Gage height 1.85 ft
Live, provisional data from USGS gauge FOSTER BRANCH NEAR JOPPATOWNE, MD (3.3 mi away), as of Oct 20, 2:35 AM gauge-local time.
- Flow is above the 75th percentile for Oct 20 (median 0 ft³/s over 11 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Oct 20, 2:35 AM gauge-local time
Why, sources & official advisories
- Water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion. — USGS gauge 01585075, as of Oct 20, 2:35 AM gauge-local time
No official beach-advisory feed for Maryland yet — follow posted signs and local guidance.
Get an email when it’s warm enough
It’s 53°F at Gunpowder Falls State Park Hammerman Area now. We check the water daily and email you once when it reaches your temperature.
Gunpowder River hub for picnics & kayaking, with rentable picnic shelters, fishing & swimming.
Things to Do Near Gunpowder Falls State Park Hammerman Area
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Weather at Gunpowder Falls State Park Hammerman Area
54°F, Clear · H 68° / L 53° · 2% chance of rain3-day forecast









Frequently asked questions
- Where is Gunpowder Falls State Park Hammerman Area?
- Gunpowder Falls State Park Hammerman Area is a state park in Middle River, Maryland.
- What is the water temperature at Gunpowder Falls State Park Hammerman Area?
- As of October 20, 2026, the water temperature at Gunpowder Falls State Park Hammerman Area in Middle River, Maryland is 53°F (12°C), measured by USGS gauge 01585075, 3.3 miles away.
- Can you swim at Gunpowder Falls State Park Hammerman Area?
- Cold water — serious cold-shock risk today: water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion. Checked October 20, 2026.
- How is Gunpowder Falls State Park Hammerman Area rated?
- Gunpowder Falls State Park Hammerman Area in Middle River, Maryland has an average visitor rating of 4.5 out of 5, based on 3496 reviews.
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Location & Contact
7200 Graces Quarters Rd, Middle River, MD 21220
Middle River, Maryland 21220
Phone
+1 410-335-3461Popular Times
💡 Best times & visiting tips
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Features & amenities
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