IS 70 WB at South MountainMD064
Beside a road/2.2 mi away/797 ft/134 ft below here
temp, pavement temp, wind, visibility, precip
Coming up. Tomorrow is 30 degrees cooler: a high of 51° after 81° today.
Now. Washington Monument State Park is 61° and overcast at 8 AM. The dew point is 61°, so the air feels humid and sticky. Gentle breeze from the south at 8 mph.
Today and tonight. It warms to about 79° by 2 PM. Tonight falls to about 45° by 8 AM, with some cloud.
The week. The warmest day ahead is Wednesday, near 63°, and the coolest tomorrow, near 51°. The days ahead look dry. Frost is possible Sunday morning, a low of 33°.
The sky tonight. The sun sets at 6:30 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:26 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The day is 11 hours 10 minutes long, 2 minutes shorter than yesterday.
As of 8:00 AM in Washington Monument State Park, Maryland.
Air quality
Index 12, good, led by ozone. Read at 7 AM from its reporting area, Maryland Piedmont (MD), 17 miles off.
Good each day through Sun Oct 18, led by fine particles. Yesterday measured 19, good.
Little smoke near the ground through Sun 2 AM: the index from smoke stays at 6 or under.
Precipitation
0.11 in in the last 24 hours, and none in the 2 days before, to Fri 7 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 6 miles or more through Sun 2 AM, lowest 6 miles Fri 8 AM.
F
Now, today, and the week
The 6 instruments nearest Washington Monument State Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.
measured now4 instruments
IS 70 WB at South MountainMD064
Beside a road/2.2 mi away/797 ft/134 ft below here
temp, pavement temp, wind, visibility, precip
Antietam National BattlefieldANBM2
At a river or reservoir gauge/6.8 mi away/476 ft/455 ft below here
temp, wind, gust, humidity, pressure
Citizen station DW8300DW8300
In a volunteer observer's own ground/7.2 mi away/638 ft/293 ft below here
temp, humidity, wind, precip, pressure
Camp DavidRSP
At an airfield/13.3 mi away/1,841 ft/910 ft above here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Boonsboro 0.4 NNEMD-WH-17
In a volunteer observer's own ground/1.6 mi away/556 ft/375 ft below here
precip, snowfall, snow depth
Hagerstown 1EHGCM2
At a cooperative observer's station/10.4 mi away/541 ft/390 ft below here
snowfall, snow depth, precip, high, low
-
Snow on the ground
21 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.