Alert. A Freeze Watch is in force for Le Mars Municipal Airport until 8 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Le Mars Municipal Airport is 45° and mostly cloudy at 2 AM. With the wind it feels like 37°. The dew point is 40°, so the air feels dry and comfortable. Fresh breeze from the northwest at 20 mph.
Today and tonight. It warms to about 50° by 3 PM. Tonight falls to about 32° by 3 AM, under a mostly clear sky. A freeze: protect plants and pipes. 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 59°. The days ahead look dry. The windiest day is tomorrow, with wind to 20 mph. The first freeze could come tomorrow, a low of 31°.
The sky tonight. The sun sets at 6:41 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:30 PM. The next full Moon is Sunday, Oct 25. 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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 3 minutes long, 3 minutes shorter than yesterday.
As of 2:00 AM in Le Mars Municipal Airport, Iowa.
Air quality
Index 20, good, led by ozone. Read at 1 AM from its reporting area, Sioux City (IA), 20 miles off.
No smoke near the ground through Sat 7 PM.
Precipitation
0.51 in in the last 24 hours, 0.59 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 9 miles or more through Sat 7 PM, lowest 9 miles Sat 8 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 18 / 36 | 5,056 ft | 75 ft | Concrete | 188° / 8° | 11 mph head, on 36 | 17 mph from the left |
Measured here
Every hour from Le Mars (LRJ), Le Mars Municipal Airport's own instrument, measure by measure, on the field's own clock.
17 mph from the west northwest at 2 AM; at its strongest 20 mph, 1 AM, with a gust of 37 mph at 12 AM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.25 inHg at 2 AM, rising 0.03 inHg over 3 hours; 0.17 inHg higher than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 12 PM Thursday; 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 3 AM Thursday; a base was reported in 23 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
None measured in the gauge in the last 24 hours.
How it is measured: ASOS, Field Book FB-INS-002
Le Mars: every reading, the last 7 days, 30 days and the year, and how well it reports
The 6 instruments nearest Le Mars Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.
measured now4 instruments
Le MarsLRJ
At an airfield/0.1 mi away/1,194 ft/3 ft below here
temp, wind, gust, visibility, precip, pressure
AkronRAWI4
Beside a road/9.3 mi away/1,403 ft/206 ft above here
temp, pavement temp, wind, visibility, precip
MilnervilleBKTI4
At a river or reservoir gauge/20.3 mi away/1,224 ft/27 ft above here
temp, wind, gust, humidity, pressure
Shagbark HillsS2068
At a soil climate station/32.3 mi away/1,119 ft/78 ft below here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Le Mars 0.7 WIA-PL-11
In a volunteer observer's own ground/0.9 mi away/1,218 ft/21 ft above here
precip, snowfall, snow depth
Le MarsLEMI4
At a cooperative observer's station/1.4 mi away/1,280 ft/83 ft above here
snowfall, snow depth, precip, high, low
-
Snow on the ground
15 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.