82°
Chance Showers And Thunderstorms
39%
35
Calvert County, MD · Patuxent River
Jefferson Patterson Park & Museum
10515 Mackall Rd, St Leonard, MD 20685
560-acre archaeological park on the Patuxent River with a sandy beach, museum of Maryland archaeology, and 3+ miles of trails. The beach is quiet, dog-friendly, and one of the better spots to wade and look for Native American artifacts (which must be left in place if found).
Today's Conditions
Skip the beach today.
Thunderstorms · High nettle risk · 84°F water
Full NWS forecast for Today
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms between 2pm and 4pm. Mostly cloudy, with a high near 82. East wind 8 to 12 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tonight
Mostly cloudy, with a low around 70. East wind 5 to 12 mph. New rainfall amounts less than a tenth of an inch possible.
Weather
- 82°F air — ideal beach weather
- 39% rain — pop-up showers possible
Water
- 84°F water — warm — full-day swim weather
- High nettle risk — 69% probability — reconsider swimming
Safety
- Thunderstorms — stay off the water when storms approach
30 /100
skip
0 Swim
54 Sunbathe
21 Walk
41 Fish
30 Photo
Best for sunbathing today
Atmosphere
Air Temp
82°F
Mostly Cloudy
Wind
8 to 12 mph
E
Rain
39%
Today
Tomorrow
81°F
Partly Sunny
Water
Water Temp
84°F
Swimming weather
Next Low Tide
7:02 PM
0.1 ft · in 3.9h
Sea Nettles
High nettle risk
69% probability · Gooses Reef buoy
Water Quality
Clean
10 MPN/100mL · Enterococcus
USGS · sampled 10mo ago
Sun & Moon
Sunrise
5:52 AM
Sunset
8:30 PM
Moon · 5%
Waning Crescent
Spring tides — bigger range
7-Day Beach Day Forecast
81°
Partly Sunny
2%
86
86°
Sunny
1%
86
94°
Sunny
1%
73
92°
Sunny
3%
78
90°
Mostly Sunny then Slight Chance Showers And Thunderstorms
15%
44
90°
Mostly Sunny then Slight Chance Showers And Thunderstorms
22%
41
What to Bring Today
- recommended Sturdy umbrella + sand anchor 8 to 12 mph wind
- optional Swimsuit - water is swimmable Water is 84°F
- optional Light cover-up, watch for pop-ups 39% rain chance
Always remember water bottle, trash bag (leave no trace).
Best Fishing Times Today
Solunar theory: fish activity peaks at moon transits (major) and moonrise/moonset (minor). All times local.
Major
10:00 PM - 12:00 AM
Minor
3:00 AM - 4:00 AM
Major
10:30 AM - 12:30 PM
Minor
7:00 PM - 8:00 PM
Beach Info
Parking
Free park lot.
Dogs
Dogs permitted on leash.
Entry Fee
Free
Address
10515 Mackall Rd, St Leonard, MD 20685
Amenities
Frequently Asked
Is it safe to swim at Jefferson Patterson Park & Museum today?
Jefferson Patterson Park & Museum shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Jefferson Patterson Park & Museum dog-friendly?
Dogs permitted on leash.
Is there an entry fee at Jefferson Patterson Park & Museum?
Entry to Jefferson Patterson Park & Museum is free.
Are there lifeguards at Jefferson Patterson Park & Museum?
No lifeguards are stationed at Jefferson Patterson Park & Museum. Swim at your own risk and keep close watch on children.
What amenities are at Jefferson Patterson Park & Museum?
Amenities at Jefferson Patterson Park & Museum include museum, trails, restrooms, picnic areas, fishing pier.
When is the water warmest at Jefferson Patterson Park & Museum?
The Patuxent warms through July to highs around 78-82°F. Best swimming window is late June through early September.
Where is Jefferson Patterson Park & Museum located?
Jefferson Patterson Park & Museum is in Calvert County, MD, at 10515 Mackall Rd, St Leonard, MD 20685.
Nearby Beaches
Updated · Data from NOAA, NWS