Citizen station FW6547FW6547
In a volunteer observer's own ground/1.4 mi away/462 ft/67 ft above here
temp, humidity, wind, precip, pressure
Severe Thunderstorm Watch, in full
Alert. A Severe Thunderstorm Watch is in force for Difficult Run until 8 PM today. Read the alert in full, and see what it means in the Field Book. Rain is likely this evening, from about 7 PM (51%).
Now. Difficult Run is 79° and mostly clear at 2 PM. The dew point is 68°, so the air feels oppressive. Light breeze from the south-southwest at 6 mph.
Today and tonight. It warms to about 82° by 3 PM. Tonight falls to about 48° by 8 AM, under cloud.
The week. The warmest day ahead is Tuesday, near 63°, and the coolest tomorrow, near 54°. Rain is possible tomorrow (41%). Frost is possible Sunday morning, a low of 36°.
The sky tonight. The sun sets at 6:30 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:27 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. Cloud is forecast to cover most of the night, so the sky will be hard to see. The day is 11 hours 11 minutes long, 3 minutes shorter than yesterday.
As of 2:00 PM in Difficult Run, Virginia.
Air quality
Index 50, good, led by fine particles. Read at 2 PM from its reporting area, Northern Virginia (VA), 6 miles off.
Good each day through Wed Oct 21, led by fine particles. Yesterday measured 28, good.
Little smoke near the ground through Sun 8 AM: the index from smoke stays at 6 or under.
Precipitation
0.16 in in the last 24 hours, and none in the 2 days before, to Fri 1 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 6 miles or more through Sun 8 AM, lowest 7 miles Sat 4 AM.
F
Now, today, and the week
On the radar over Difficult Run, VirginiaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
The 5 instruments nearest Difficult Run, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.
measured now3 instruments
Citizen station FW6547FW6547
In a volunteer observer's own ground/1.4 mi away/462 ft/67 ft above here
temp, humidity, wind, precip, pressure
Meteorological STN At Glade Rec Area At Reston385536077204401
At a river or reservoir gauge/2.2 mi away/382 ft/13 ft below here
temp, wind, gust, humidity, pressure
At an airfield/5.7 mi away/322 ft/73 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Oakton 2.0 SWVA-FX-95
In a volunteer observer's own ground/1.8 mi away/383 ft/12 ft below here
precip, snowfall, snow depth
Dunn LoringDNLV2
At a cooperative observer's station/7.4 mi away/489 ft/94 ft above here
snowfall, snow depth, precip, high, low
Station report
The nearest airport reporting now, 5.7 mi from Difficult Run, Virginia. From its report of Oct 16, 2026, 1:52 PM local time: 3 of its 6 sheets.
A few clouds at 2,000 ft, a few clouds at 3,100 ft; visibility 10 mi or more.
79.0 F with a dew point of 68.0 F, 69 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,600 ft up; the lowest cloud reported is at 2,000 ft.
From the south southwest (200 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 21 mph.
The full report of Washington/Dulles, in 6 sheets, each beside the Field Book plates that explain it
0in
Snow on the ground
Measured at Dunn Loring (DNLV2), 7.4 miles from here, read 16 Oct, 08:00. measured daily
16 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.