Temperature
46 F at 5 AM; 62 F at its warmest, 4 PM Thursday, and 46 F at its coolest, 5 AM.
- Now
- 46F
- 5 AM
- Highest
- 62F
- 4 PM Thursday
- Lowest
- 46F
- 5 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Tri Township Airport, Illinois
Small airport in Carroll 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.
45°
56°/43°
Partly cloudy·
Feels like 39°·Moderate breeze 13 mph WNW
Alert. A Freeze Warning is in force for Tri Township Airport until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Tri Township Airport is 45° and partly cloudy at 5 AM. With the wind it feels like 39°. The dew point is 42°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 13 mph.
Today and tonight. It warms to about 54° by 1 PM. Tonight falls to about 32° 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 32°.
The sky tonight. The sun sets at 6:17 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:07 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, 2 minutes shorter than yesterday.
0UV Low
23Air quality
85%Humidity
43%Cloud
Now
5:00 AM
45feels39
13mph
Today
Oct 16
5643
14%
17mph
Sat
Oct 17
5732
clear day
Sun
Oct 18
6337
12mph
Mon
Oct 19
6739
overcast
Tue
Oct 20
6942
overcast
Wed
Oct 21
7245
overcast
Thu
Oct 22
7350
13%
45°
56°43°
57°32°
63°37°
67°39°
69°42°
72°45°
73°50°
As of 5:00 AM in Tri Township Airport, Illinois.
Air quality
The air at Tri Township Airport
Index 23, good, led by fine particles. Read at 5 AM from its reporting area, Clinton (IA), 15 miles off.
23Good
- Fine particles (PM2.5)23Good16.5 mi
- Ozone11Good13 ppb12.6 mi
- Sulfur dioxide0Good0 ppb16.5 mi
The days ahead
Yesterday measured 22, good.
GoodModerate
- 22YesterdayOct 15
Smoke, the next 45 hours
No smoke near the ground through Sun 1 AM.
Precipitation
What has fallen at Tri Township Airport
0.17 in in the last 24 hours, and none in the 2 days before, to Fri 4 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.17in
- Last 3 days
- 0.17in
Visibility
How far you can see at Tri Township Airport, the next 45 hours
Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Sat 6 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- SFY
- ICAO
- KSFY
- IATA
- -
- Field elevation
- 616 ft
- Serves
- Savanna
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- SFY
- Wind now
- From 290° at 13 mph, read 16 Oct, 05:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 13 / 31 unlit | 4,001 ft | 75 ft | Asphalt | 136° / 316° | 12 mph head, on 31 | 6 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Savanna (SFY), Tri Township Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 42 F, the air 84% saturated; the humidity ran from 81% at 3 AM to 100% at 5 PM Thursday.
- Dew point now
- 42F
- 5 AM
- Humidity now
- 84%
- Humidity, range
- 81 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
13 mph from the west northwest at 5 AM; at its strongest 16 mph, 10 PM Thursday, with a gust of 26 mph at 9 PM Thursday.
- Now
- 13mph
- from the west northwest
- Strongest
- 16mph
- 10 PM Thursday
- Highest gust
- 26mph
- 9 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.06 inHg at 5 AM, rising 0.06 inHg over 3 hours; 0.03 inHg lower than a day before.
- Now
- 30.06inHg
- 5 AM
- 3 hours
- +0.06inHg
- rising
- 24 hours
- -0.03inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 1 mile at 12 PM Thursday; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 1mi
- 12 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 12 PM Thursday; a base was reported in 23 of the hours.
- Lowest base now
- 2,000ft
- Lowest in 24 hours
- 400ft
- 12 PM Thursday
- Hours with a base reported
- 23
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.11 in measured in the gauge, the most, 0.04 in, in the hour to 5 PM Thursday.
- Last 24 hours
- 0.11in
- Wettest hour
- 0.04in
- 5 PM Thursday
- Hours with some
- 6
How it is measured: ASOS, Field Book FB-INS-002
Savanna: 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 Tri Township 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
SavannaSFY
At an airfield/0.0 mi away/617 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
Mississippi River AT Fulton LD13FLTI2
At a river or reservoir gauge/9.2 mi away/577 ft/39 ft below here
temp, wind, gust, humidity, pressure
US-20 FreeportSS1843
Beside a road/31.0 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Savanna 2.6 SSEIL-CR-1
In a volunteer observer's own ground/0.9 mi away/617 ft/1 ft above here
precip, snowfall, snow depth
Mount CarrollMTCI2
At a cooperative observer's station/7.4 mi away/725 ft/109 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in Illinois
23 places, each with its own forecast and its own instruments.
AuroracityBloomingtoncityCarbondalecityChampaigncityChicagocityDanvillecityDecaturcityElgincityGalenatownIllinois RiverfeatureJolietcityLake ShelbyvillefeatureMolinecityMount VernoncityNapervillecityPeoriacityQuincycityRockfordcityShawnee National ForestfeatureSpringfieldcityStarved RockfeatureVilla Oliviaski areaWaukegancity
Near Tri Township Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Savannacity, 4 mi
- Thomsonvillage, 5 mi
- Mount Carrollcity, 8 mi
- Chadwickvillage, 12 mi
- Fultoncity, 13 mi
- Lanarkcity, 15 mi
- Lake Carrollcommunity, 15 mi
- Hanovervillage, 17 mi
- Morrisoncity, 18 mi
- Milledgevillevillage, 18 mi
- Coletavillage, 19 mi
- Albanyvillage, 19 mi
Airports near Tri Township Airport
- Albertus AirportFEP, 30 mi
- Whiteside County Airport - Joseph H Bittorf FieldSQI, 31 mi
- Quad City International AirportMLI, 46 mi
- Chicago Rockford International AirportRFD, 53 mi
- Rochelle Municipal Airport - Koritz FieldRPJ, 54 mi
- Illinois Valley Regional Airport Walter A Duncan FieldVYS, 69 mi
- DeKalb Taylor Municipal AirportDKB, 72 mi
- Galesburg Regional HW Timmons AirportGBG, 78 mi