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Shaded-relief map of Winchester, Illinois: rivers, roads, the city limits and where the water drains.
ILLINOIS · SCOTT COUNTY

Winchester

1,510 people, 550 ft above sea level in Scott County.

550 ftElevation, city center
1,510People, 2024 estimate
1 sq miLand area
Clear 39°
Clear now Dew point 24° · Calm · high 39°
City of Winchester River Interstate 2 miles
Explore the plate Order a print

The Winchester plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Winchester

NWS forecast and National Blend of Models · updated 5:00 PM CST
RIGHT NOW Pittsfield Penstone Municipal Airport (KPPQ) · 5:55 PM
Clear
39° Clear Feels like 39° · high of 39° near 6 PM
WindCalmno gusts
Humidity55%rising to 92% by morning
Pressure30.31 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 24° · Dry37° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAIN—none in 31 days
ALERTS & OUTLOOKS
No watches or warnings for Scott County
NWS Lincoln and the Storm Prediction Center · checked 6:18 PM
SUN & MOON
↑ 6:45 AM4:47 PM ↓
10 h 2 m of daylight, 2 minutes less than yesterday
Waxing crescent, 27% lit. Next full moon: Nov. 24.
AIR & POLLEN
13
GOODAir quality index · fine particles
Tomorrow: None, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
clear night
clear night
clear night
mostly clear night
partly cloudy day
partly cloudy day
partly cloudy day
mostly sunny
clear night
mostly clear night
mostly clear night
clear night
clear day
clear day
clear day
mostly sunny
mostly clear night
clear night
clear night
clear night
clear day
clear day
clear day
clear day
TEMPERATURE °F
39°
27°
51°
30°
54°
34°
CHANCE OF RAIN
50%
WIND, MPH
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
2
2
2
2
2
3
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HOW IT FEELS · DEW POINT
Dry: dew points 24 to 37° More humid: 35° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 54° / 33°
SAT Nov. 14 Sunny Sunny
39° 26°
0% rain — NE 0 A
SUN Nov. 15 Partly cloudy; warmer Partly cloudy; warmer
53° 28°
0% rain — NNW 0 A
MON Nov. 16 Sunny Sunny
56° 31°
0% rain — S 2 A
TUE Nov. 17 Sunny Sunny
58° 35°
0% rain — SSE 5 A
WED Nov. 18 Partly cloudy Partly cloudy
61° 46°
10% rain — SSE 10 B
THU Nov. 19 Mostly sunny Mostly sunny
65° 47°
20% rain — W 2 C
FRI Nov. 20 Partly cloudy Partly cloudy
67° 52°
10% rain — SSE 7 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Winchester about 5,000 feet above the ground was over the open Pacific three days ago, and over the central Plains a day ago, about 2,630 miles back along its path. It came down from about 14,700 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from the central Plains. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK IN 2015 Nov. 17–18, 2015

The wettest two days this week has seen

3.95 inches of rain fell in two days, the most for this week of the year since records began in 1887. The next wettest, 3.65 inches, fell in 2009.

3.65″
3.95″
20092015
Source: NOAA RCC-ACIS, the White Hall 1 E record since 1887.
MILE2
THE GROUND

What Winchester stands on

Winchester’s center stands about 550 ft above sea level. Within three miles the land runs from 470 ft to 600 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Calvert Hill, about 740 ft, 13 miles west.

The section below crosses 8 rock units mapped at the surface.

Winchester, cut in half from southwest to northeast

A section southwest to northeast, 24 miles through the town center
400 ft500 ft600 ft700 ft WINCHESTER550 ftPilot Knob710 ftBig Sandy Creekabout 450 ftAllison Mound690 ft ← SWNE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Carbondale Formation

Shale, sandstone, coal. Age: Middle Pennsylvanian to Late Pennsylvanian, 304 to 315 million years old. About 12 mi of the line.

New Albany Shale, Blocher Shale, Sylamore Sandstone, Selmier Shale, Sweetland Creek Shale, Grassy Creek Shale, Saverton Shale, and Louisiana Limestone

Shale. Age: Middle Devonian to Late Devonian, 359 to 388 million years old. About 3 mi of the line.

St. Louis Limestone

Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 3 mi of the line.

Glen Park Formation, Hannibal Shale, Chouteau Limestone, McCraney Limestone, Prospect Hill Siltstone, and Starrs Cave Limestone

Limestone, shale. Age: Early Mississippian, 347 to 359 million years old. About 3 mi of the line.

Meppen Limestone, Fern Glen Formation, and Burlington-Keokuk Limestone

Limestone. Age: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 1 mi of the line.

Warsaw Formation and Salem Limestone

Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 1 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 smaller units along the line are not listed.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Winchester’s rain goes

A raindrop that lands in Winchester reaches the Gulf of America by way of Big Sandy Creek, the Illinois and the Mississippi: about 1,250 river miles.

THE WAY DOWN, TO SCALE
Winchester≈ 1,250 mi · the Gulf of America
FROM THE CENTER OF WINCHESTER ≈ 1,250 mi to the Gulf of America Big Sandy Creek → Illinois → Mississippi

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Winchester; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Winchester’s year

1991–2020 normals · records since 1887 · White Hall 1 E, 14 mi south-southeast

Winchester has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 18° in January. A normal year brings about 18 inches of snow; with the rain, that comes to about 40 inches of water.

35°18°41°22°52°32°64°42°74°53°82°62°86°66°84°64°79°55°67°43°52°33°40°24° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY WINCHESTER 39.6 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average86° / 66°high / low, the warmest month
January, average35° / 18°high / low, the coldest month
Rain and melted snow39.6 inwettest months: May and June
Snow a year18.2 insnowiest: January
Hottest on record113°FJuly 24, 1934
Coldest on record−26°FJanuary 7, 1912
Wettest day on record5.60 inDecember 3, 1982
Snowiest day on record14.0 inMarch 19, 1906
90° days a year25very few reach 100°
Nights at or below 32°120and 31 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 17, to the last in spring, about April 13 (median dates)
2Lows below freezingNov. 16 to March 19; normal lows fall below 32°
3Wettest stretchApril through June: 13.9 of the year’s 39.6 inches
NOVEMBER 14 IN THE RECORD

On November 14 Winchester normally reaches 53° and falls to 33°. The record high is 80°, in 1931; the record low 7°, in 1986. The most rain on this date, 1.40 in, fell in 1913.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high35°41°52°64°74°82°86°84°79°67°52°40°
Normal low18°22°32°42°53°62°66°64°55°43°33°24°
Rain and melt, in2.062.052.914.414.814.673.873.352.993.023.112.33
Snow, inches6.34.71.80.40.00.00.00.00.00.01.33.7
Record high77° (1909)83° (1932)94° (1907)93° (1930)103° (1934)106° (1934)113° (1934)112° (1934)104° (1913)95° (1953)84° (1950)74° (2012)
Record low−26° (1912)−25° (1905)−13° (1978)11° (1920)22° (1907)35° (1946)44° (1972)41° (1910)25° (1942)13° (1925)−6° (1929)−20° (1989)

Normals 1991–2020 and records since 1887 at White Hall 1 E, 14 miles south-southeast. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Winchester on the Forecast Network

Neighboring plates

Jacksonville IL · 14 MI 14 miles northeast St. Louis MO · 70 MI 70 miles south Columbia MO · 111 MI 111 miles southwest Cedar Rapids IA · 173 MI 173 miles north Evansville IN · 194 MI 194 miles southeast
FORECASTCITY
Map of Winchester, Illinois. Explore the plate
ILLINOIS · SCOTT

Winchester

1,510 people, 550 ft above sea level in Scott County.

550 ftElevation
1,510People
1 sq miLand
Clear 39°
ClearDew point 24°
1

Today in Winchester

NEXT 15 HOURS
Now clear night 39° 0%
9p clear night 33° 0%
12a clear night 30° 0%
3a mostly clear night 29° 0%
6a partly cloudy night 27° 0%
9a partly cloudy day 37° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
26
39
A
Sun0%
Partly cloudy; warmer Partly cloudy; warmer
28
53
A
Mon0%
Sunny Sunny
31
56
A
Tue0%
Sunny Sunny
35
58
A
Wed10%
Partly cloudy Partly cloudy
46
61
B
Thu20%
Mostly sunny Mostly sunny
47
65
C
Fri10%
Partly cloudy Partly cloudy
52
67
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 2015 · NOV. 17–18, 2015

3.95 inches in two days, the most for this week since 1887.

2

What Winchester stands on

Winchester’s center stands about 550 ft above sea level. Within three miles the land runs from 470 ft to 600 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Calvert Hill, about 740 ft, 13 miles west.

Winchester, southwest to northeast Winchester550 ftPilot Knob710 ftBig Sandy Creekabout 450 ftAllison Mound690 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 116×. Colors: rock at the surface.
Elevation, center550 ft
Within 3 miles470 to 600 ft
Lie of the landGently rolling (130 ft of relief)
High point nearbyCalvert Hill, 740 ft, 13 mi west
5

Winchester’s year

Winchester has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 18° in January. A normal year brings about 18 inches of snow; with the rain, that comes to about 40 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 39.6 in
July, average86° / 66° · high / low, the warmest month
January, average35° / 18° · high / low, the coldest month
Rain and melted snow39.6 in · wettest months: May and June
Snow a year18.2 in · snowiest: January
Hottest on record113°F · July 24, 1934
Coldest on record−26°F · January 7, 1912
Wettest day on record5.60 in · December 3, 1982
Snowiest day on record14.0 in · March 19, 1906
90° days a year25 · very few reach 100°
Nights at or below 32°120 · and 31 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 17, to the last in spring, about April 13 (median dates)
2Lows below freezing · Nov. 16 to March 19; normal lows fall below 32°
3Wettest stretch · April through June: 13.9 of the year’s 39.6 inches
NOVEMBER 14 IN THE RECORD

On November 14 Winchester normally reaches 53° and falls to 33°. The record high is 80°, in 1931; the record low 7°, in 1986. The most rain on this date, 1.40 in, fell in 1913.

Normals 1991–2020 and records since 1887 at White Hall 1 E, 14 miles south-southeast. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,250 mito the Gulf of AmericaBig Sandy Creek → Illinois → Mississippi

A raindrop that lands in Winchester reaches the Gulf of America by way of Big Sandy Creek, the Illinois and the Mississippi: about 1,250 river miles.