Storm Station
Forsyth, Illinois
52° 77°/50°
Clear· Feels like 52°·Light breeze 6 mph ENE
Partly cloudy, with a low around 51. East wind around 3 mph.
0UV Low
-Air quality
79%Humidity
7%Cloud
Now
4:00 AM
52feels52
now, clear
Today
Sep 27
7750
overcast
Mon
Sep 28
7749
overcast
Tue
Sep 29
8255
overcast
Wed
Sep 30
9065
23%
17mph
overcast
Thu
Oct 1
7865
52%
14mph
showers light
Fri
Oct 2
6854
45%
15mph
drizzle light
Sat
Oct 3
6349
27%
12mph
drizzle light
52°
77°50°
77°49°
82°55°
90°65°
78°65°
68°54°
63°49°

As of 4:00 AM in Forsyth, Illinois.

What is measuring near here

The 4 instruments nearest Forsyth, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.3 miles away.

measured now2 instruments

DecaturDEC

At an airfield/8.4 mi away/679 ft/9 ft above here

temp, wind, gust, visibility, precip, pressure

Rank1of 417

Champaign 9 SW54808

At a climate reference station/32.8 mi away/700 ft/30 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Warrensburg 0.6 EIL-MA-32

In a volunteer observer's own ground/4.3 mi away/690 ft/20 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Decatur, drawn

The nearest airport reporting now, 8.4 mi from Forsyth. From its report of Sep 27, 2026, 3:54 AM local time: 3 of its 6 sheets.

The sky

Scattered at 10,000 ft; visibility 10 mi or more.

Section of the sky over Decatur, height above the station to scale: scattered cloud with its base at 10,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. A THE SKY OVER DECATURSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION02,5005,0007,50010,00012,50015,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTSCT 10,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEDecatur, the skySTATION REPORT · ASOS DECTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-DEC-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

50.0 F with a dew point of 48.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 10,000 ft.

Chart of the air at Decatur: temperature 50.0 degrees Fahrenheit and dew point 48.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 10,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. B THE AIR AT DECATURTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00040 F50 F60 FSATURATES 500 FT ABOVE THE STATION, AT 47.5 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, SCT 10,000 FTTEMPERATURE AND DEW POINT 50.0 F, 48.0 FRELATIVE HUMIDITY 93 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEDecatur, the airSTATION REPORT · ASOS DECTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-DEC-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northeast (50 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Decatur, north up: blowing from 50 degrees, the northeast, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. C THE WIND AT DECATURPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 50°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDecatur, the windSTATION REPORT · ASOS DECTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-DEC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Decatur, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Sangamon River AT Decatur WTP (DECI2), 6.9 miles from here, read 25 Sep, 23:59. measured daily

Elsewhere in Illinois

23 places, each with its own forecast and its own instruments.

Near Forsyth

The nearest places, each with its own forecast and the instruments nearest it.