Temperature
52 F at 1 AM; 62 F at its warmest, 5 PM Thursday, and 52 F at its coolest, 1 AM.
- Now
- 52F
- 1 AM
- Highest
- 62F
- 5 PM Thursday
- Lowest
- 52F
- 1 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Albertus Airport, Illinois
Small airport in Stephenson County, Illinois* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of northwest Illinois and east central, northeast, and southeast Iowa. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
50°
55°/43°
Overcast·
Feels like 50°·Moderate breeze 17 mph WNW
Alert. A Freeze Warning is in force for Albertus Airport until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Albertus Airport is 50° and overcast at 2 AM. The dew point is 48°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 17 mph.
Today and tonight. It warms to about 53° by 1 PM. Tonight falls to about 30° by 7 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 Thursday, near 73°, and the coolest tomorrow, near 57°. The days ahead look dry. The first freeze could come tomorrow, a low of 30°.
The sky tonight. The sun sets at 6:15 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:04 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 4 minutes long, 3 minutes shorter than yesterday.
0UV Low
8Air quality
100%Humidity
100%Cloud
Now
2:00 AM
50feels50
17mph
Today
Oct 16
5543
15%
18mph
Sat
Oct 17
5730
clear day
Sun
Oct 18
6337
14mph
Mon
Oct 19
6640
overcast
Tue
Oct 20
7041
overcast
Wed
Oct 21
7245
overcast
Thu
Oct 22
7350
12%
50°
55°43°
57°30°
63°37°
66°40°
70°41°
72°45°
73°50°
As of 2:00 AM in Albertus Airport, Illinois.
Air quality
The air at Albertus Airport
Index 8, good, led by ozone. Read at 1 AM from its reporting area, Rockford (IL), 28 miles off.
8Good
- Fine particles (PM2.5)6Good-
- Ozone8Good-
The days ahead
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 18, good.
GoodModerate
- 18YesterdayOct 15
- GoodTodayOct 16
- GoodSatOct 17
- GoodSunOct 18
- GoodMonOct 19
Smoke, the next 42 hours
No smoke near the ground through Sat 7 PM.
Precipitation
What has fallen at Albertus Airport
0.26 in in the last 24 hours, and none in the 2 days before, to Fri 1 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.26in
- Last 3 days
- 0.26in
Visibility
How far you can see at Albertus Airport, the next 42 hours
Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Sat 6 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- FEP
- ICAO
- KFEP
- IATA
- FEP
- Field elevation
- 859 ft
- Serves
- Freeport
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- FEP
- Wind now
- From 300° at 17 mph, read 16 Oct, 01:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 06 / 24 | 5,504 ft | 100 ft | Asphalt | 53° / 233° | 7 mph head, on 24 | 16 mph from the right |
| 13 / 31 unlit | 2,285 ft | 150 ft | Grass | 126° / 306° | 17 mph head, on 31 | 2 mph from the left |
| 18 / 36 unlit | 2,404 ft | 150 ft | Grass | 179° / 359° | 9 mph head, on 36 | 15 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Freeport (FEP), Albertus Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 50 F, the air 95% saturated; the humidity ran from 87% at 3 AM Thursday to 95% at 12 AM.
- Dew point now
- 50F
- 1 AM
- Humidity now
- 95%
- Humidity, range
- 87 to 95%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
17 mph from the west northwest at 1 AM; at its strongest 18 mph, 12 AM, with a gust of 29 mph at 1 AM.
- Now
- 17mph
- from the west northwest
- Strongest
- 18mph
- 12 AM
- Highest gust
- 29mph
- 1 AM
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.96 inHg at 1 AM, rising 0.06 inHg over 3 hours; 0.22 inHg lower than a day before.
- Now
- 29.96inHg
- 1 AM
- 3 hours
- +0.06inHg
- rising
- 24 hours
- -0.22inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 1 mile at 5 PM Thursday; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 1mi
- 5 PM Thursday
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 400 ft at 8 AM Thursday; a base was reported in 22 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 400ft
- 8 AM Thursday
- Hours with a base reported
- 22
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.21 in measured in the gauge, the most, 0.09 in, in the hour to 5 PM Thursday.
- Last 24 hours
- 0.21in
- Wettest hour
- 0.09in
- 5 PM Thursday
- Hours with some
- 7
How it is measured: ASOS, Field Book FB-INS-002
Freeport: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Albertus 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 now3 instruments
FreeportFEP
At an airfield/0.0 mi away/860 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
US-20 FreeportSS1843
Beside a road/5.8 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
Mississippi River AT Fulton LD13FLTI2
At a river or reservoir gauge/37.0 mi away/577 ft/282 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Freeport 1.3 EIL-SP-22
In a volunteer observer's own ground/3.3 mi away/801 ft/58 ft below here
precip, snowfall, snow depth
FreeportFEEI2
At a cooperative observer's station/4.1 mi away/771 ft/88 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Freeport (FEEI2), 4.1 miles from here, read 15 Oct, 07:00. measured daily
Elsewhere in Illinois
23 places, each with its own forecast and its own instruments.
AuroracityBloomingtoncityCarbondalecityChampaigncityChicagocityDanvillecityDecaturcityElgincityGalenatownIllinois RiverfeatureJolietcityLake ShelbyvillefeatureMolinecityMount VernoncityNapervillecityPeoriacityQuincycityRockfordcityShawnee National ForestfeatureSpringfieldcityStarved RockfeatureVilla Oliviaski areaWaukegancity
Near Albertus Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Baileyvillecommunity, 3 mi
- Freeportcity, 4 mi
- German Valleyvillage, 6 mi
- Ridottvillage, 6 mi
- Willow Lakecommunity, 7 mi
- Forrestonvillage, 8 mi
- Adelinevillage, 9 mi
- Cedarvillevillage, 9 mi
- Dakotavillage, 10 mi
- Shannonvillage, 10 mi
- Pecatonicavillage, 12 mi
- Leaf Rivervillage, 12 mi
Airports near Albertus Airport
- Chicago Rockford International AirportRFD, 25 mi
- Tri Township AirportSFY, 30 mi
- Whiteside County Airport - Joseph H Bittorf FieldSQI, 35 mi
- Rochelle Municipal Airport - Koritz FieldRPJ, 36 mi
- DeKalb Taylor Municipal AirportDKB, 50 mi
- Aurora Municipal AirportARR, 66 mi
- Illinois Valley Regional Airport Walter A Duncan FieldVYS, 66 mi
- Dupage AirportDPA, 72 mi