Temperature
48 F at 9 PM; 54 F at its warmest, 3 AM, and 48 F at its coolest, 9 PM.
- Now
- 48F
- 9 PM
- Highest
- 54F
- 3 AM
- Lowest
- 48F
- 9 PM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Alert. A Freeze Watch is in force for Harlan Municipal Airport until 8 AM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. Harlan Municipal Airport is 48° and mostly cloudy at 9 PM. With the wind it feels like 42°. The dew point is 39°, so the air feels dry and comfortable. Moderate breeze from the northwest at 15 mph.
Today and tonight. Tonight falls to about 41° by 2 AM, with some cloud. No rain is expected for the rest of the day.
The week. The warmest day ahead is Wednesday, near 75°, and the coolest tomorrow, near 51°. The days ahead look dry. The windiest day is tomorrow, with wind to 21 mph. The first freeze could come Saturday, a low of 29°.
The sky now. The Moon is a waxing crescent, 25% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the 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 8 minutes long, 3 minutes shorter than yesterday.
As of 9:00 PM in Harlan Municipal Airport, Iowa.
Air quality
Index 21, good, led by ozone. Read at 9 PM from its reporting area, Pisgah (IA), 35 miles off.
Good each day through Fri Oct 16, led by fine particles. Yesterday measured 17, good.
No smoke near the ground through Sat 1 PM.
Precipitation
1.05 in in the last 24 hours, and none in the 2 days before, to Thu 8 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 8 miles or more through Sat 1 PM, lowest 8 miles Sat 5 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 03 / 21 unlit | 1,693 ft | 120 ft | Grass | 37° / 217° | 4 mph head, on 03 | 16 mph from the left |
| 15 / 33 | 4,100 ft | 75 ft | Asphalt | 156° / 336° | 15 mph head, on 33 | 4 mph from the left |
Measured here
Every hour from Harlan (HNR), Harlan Municipal Airport's own instrument, measure by measure, on the field's own clock.
48 F at 9 PM; 54 F at its warmest, 3 AM, and 48 F at its coolest, 9 PM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 39 F, the air 71% saturated; the humidity ran from 71% at 9 PM to 100% at 5 AM.
How it is measured: Humidity variables, Field Book FB-WAT-002
17 mph from the northwest at 9 PM; at its strongest 21 mph, 8 PM, with a gust of 35 mph at 7 PM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.21 inHg at 9 PM, rising 0.08 inHg over 3 hours; 0.10 inHg higher than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 1 miles at 7 AM; 10 miles or more now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 300 ft at 5 AM; a base was reported in 24 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
1.05 in measured in the gauge, the most, 0.37 in, in the hour to 11 AM.
How it is measured: ASOS, Field Book FB-INS-002
Harlan: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Harlan Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.
measured now3 instruments
HarlanHNR
At an airfield/0.2 mi away/1,194 ft/37 ft below here
temp, wind, gust, visibility, precip, pressure
Avoca (I-80)RAVI4
Beside a road/6.5 mi away/1,237 ft/6 ft above here
temp, pavement temp, wind, visibility, precip
Irwin 3 ESEIRWI4
At a river or reservoir gauge/16.1 mi away/1,322 ft/91 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Kirkman 1.0 SEIA-SH-6
In a volunteer observer's own ground/10.3 mi away/1,284 ft/53 ft above here
precip, snowfall, snow depth
OaklandOAKI4
At a cooperative observer's station/18.9 mi away/1,188 ft/43 ft below here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at Oakland (OAKI4), 18.9 miles from here, read 15 Oct, 07:00. measured daily
15 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.