Temperature
60 F at 2 AM; 66 F at its warmest, 4 AM Thursday, and 57 F at its coolest, 4 PM Thursday.
- Now
- 60F
- 2 AM
- Highest
- 66F
- 4 AM Thursday
- Lowest
- 57F
- 4 PM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Coming up. Tomorrow is 28 degrees cooler: a high of 54° after 82° today.
Now. Frederick Municipal Airport is 59° and overcast at 3 AM. The dew point is 60°, so the air feels a little humid. Light breeze from the south at 6 mph.
Today and tonight. It warms to about 81° by 2 PM. Tonight falls to about 47° by 8 AM, with some cloud.
The week. The warmest day ahead is Tuesday, near 65°, and the coolest tomorrow, near 54°. Rain is possible tomorrow (35%). Frost is possible Sunday morning, a low of 35°.
The sky tonight. The sun sets at 6:29 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:25 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, 3 minutes shorter than yesterday.
As of 3:00 AM in Frederick Municipal Airport, Maryland.
Air quality
Index 20, good, led by ozone. Read at 2 AM from its reporting area, Maryland Piedmont (MD), 5 miles off.
Good each day through Sun Oct 18, led by fine particles. Yesterday measured 19, good.
Little smoke near the ground through Sat 8 PM: 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 2 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 6 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 05 / 23 | 5,819 ft | 100 ft | Asphalt | 40° / 220° | 4 mph head, on 23 | 5 mph from the left |
| 12 / 30 | 3,599 ft | 75 ft | Asphalt | 116° / 296° | 4 mph head, on 12 | 5 mph from the right |
Measured here
Every hour from Frederick Muni Apt (FDK), Frederick Municipal Airport's own instrument, measure by measure, on the field's own clock.
60 F at 2 AM; 66 F at its warmest, 4 AM Thursday, and 57 F at its coolest, 4 PM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 60 F, the air 100% saturated; the humidity ran from 72% at 9 AM Thursday to 100% at 4 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
4 mph from the south at 2 AM; at its strongest 12 mph, 8 AM Thursday, and no gust reported.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.05 inHg at 2 AM, falling 0.06 inHg over 3 hours; 0.08 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 1 mile at 2 PM Thursday; 8 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 500 ft at 2 AM; a base was reported in 21 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.03 in measured in the gauge, the most, 0.01 in, in the hour to 12 AM.
How it is measured: ASOS, Field Book FB-INS-002
Frederick Muni Apt: every reading, the last 7 days, 30 days and the year, and how well it reports
The 6 instruments nearest Frederick Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now4 instruments
At an airfield/0.0 mi away/302 ft/1 ft below here
temp, wind, gust, visibility, precip, pressure
I-70 at MonacacyMD050
Beside a road/1.7 mi away/354 ft/51 ft above here
temp, pavement temp, wind, visibility, precip
Catoctin Mountain Raws Near Foxville 1NeFOXM2
A remote fire weather station/17.4 mi away/1,453 ft/1,150 ft above here
temp, wind, gust, humidity, pressure
Powder MillS2049
At a soil climate station/39.4 mi away/105 ft/198 ft below here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Frederick 1.3 ENEMD-FR-43
In a volunteer observer's own ground/1.5 mi away/286 ft/17 ft below here
precip, snowfall, snow depth
Damascus 3 SSWDMAM2
At a cooperative observer's station/13.0 mi away/676 ft/373 ft above 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.