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

Cornell

441 people, 640 ft above sea level in Livingston County.

640 ftElevation, city center
441People, 2024 estimate
1 sq miLand area
Sunny 42°
Sunny now Dew point 30° · NW 5 mph · high 38°
City of Cornell River Interstate 2 miles
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The Cornell 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 Cornell

NWS forecast and National Blend of Models · updated 4:00 PM CST
RIGHT NOW Pontiac Municipal Airport (KPNT) · 4:35 PM
Sunny
42° Sunny Feels like 39° · high of 38° near 4 PM
WindNW 5 mphno gusts
Humidity62%rising to 100% by morning
Pressure30.29 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 30° · Dryabout the same for three days
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 Livingston County
NWS Chicago and the Storm Prediction Center · checked 4:45 PM
SUN & MOON
↑ 6:41 AM4:37 PM ↓
9 h 56 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% 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
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
clear night
clear night
clear night
mostly clear night
partly cloudy night
mostly sunny
mostly sunny
clear day
clear night
clear night
clear night
mostly clear night
mostly clear night
clear day
clear day
clear day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
clear night
mostly sunny
clear day
clear day
TEMPERATURE °F
38°
26°
47°
27°
50°
31°
CHANCE OF RAIN
50%
WIND, MPH
3
2
0
0
0
0
0
0
0
0
0
0
0
0
3
4
3
2
3
3
3
4
7
7
HOW IT FEELS · DEW POINT
Dry: dew points 26 to 38°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Sunny Sunny
38° 24°
0% rain — NW 3 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
52° 25°
0% rain — WNW 0 A
MON Nov. 16 Sunny Sunny
55° 29°
0% rain — SW 2 A
TUE Nov. 17 Sunny Sunny
57° 33°
0% rain — S 5 A
WED Nov. 18 Mostly sunny Mostly sunny
60° 42°
0% rain — S 10 B
THU Nov. 19 Mostly sunny Mostly sunny
63° 43°
10% rain — WSW 6 B
FRI Nov. 20 Partly cloudy Partly cloudy
64° 47°
10% rain — SSE 6 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 Cornell about 5,000 feet above the ground was over British Columbia three days ago, and over the central Plains a day ago, about 2,450 miles back along its path. It came down from about 16,400 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from British Columbia. It has stayed over land, which is why it feels dry. 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 1999 Nov. 14, 1999

The hottest this week has been

77° on Nov. 14, 1999, the hottest reading for this week of the year since 1895. Next is 76° in 1911.

76°
77°
19111999
Source: NOAA RCC-ACIS, the Minonk record since 1895.
MILE2
THE GROUND

What Cornell stands on

Cornell’s center stands about 640 ft above sea level. Within three miles the land runs from 600 ft to 680 ft, a difference of 80 ft: gently rolling country.

Under the town center the state geologic map shows Shelburn-Patoka Formations undivided (shale, limestone), from the Late Pennsylvanian, 304 to 307 million years old.

The section below crosses 2 rock units mapped at the surface.

Dana to Odell, cut in half

A section west to east, 24 miles through the town center
600 ft700 ft CORNELL640 ftVermilion Riverabout 610 ftHigh point of the line770 ftOdell710 ft ← W · DanaOdell · E →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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

Shelburn-Patoka Formations undivided

Shale, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 23 mi of the line.

Bond Formation

Shale, sandstone, limestone. Age: Late Pennsylvanian, 304 to 307 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.

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 Cornell’s rain goes

A raindrop that lands in Cornell reaches the Gulf of America by way of the Vermilion, the Illinois and the Mississippi: about 1,470 river miles.

THE WAY DOWN, TO SCALE
Cornell≈ 1,470 mi · the Gulf of America
FROM THE CENTER OF CORNELL ≈ 1,470 mi to the Gulf of America Vermilion → Illinois → Mississippi

Lake on the way: Peoria Lake.

1,190 miles of the trip are on the Mississippi.

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

MILE5
THE ALMANAC

Cornell’s year

1991–2020 normals · records since 1895 · Minonk, 17 mi west-southwest

Cornell has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 15° in January. A normal year brings about 22 inches of snow; with the rain, that comes to about 38 inches of water.

33°15°38°19°50°29°63°39°74°51°83°61°86°64°84°62°79°54°66°42°51°31°38°21° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY CORNELL 37.6 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average86° / 64°high / low, the warmest month
January, average33° / 15°high / low, the coldest month
Rain and melted snow37.6 inwettest months: May and June
Snow a year21.7 insnowiest: January
Hottest on record111°FJuly 15, 1936
Coldest on record−28°FFebruary 13, 1905
Wettest day on record9.09 inSeptember 28, 2019
Snowiest day on record14.0 inFebruary 2, 2022
90° days a year27very few reach 100°
Nights at or below 32°135and 37 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 13, to the last in spring, about April 27 (median dates)
2Highs below freezingJan. 12 to Jan. 24; normal highs stay below 32°
3Lows below freezingNov. 12 to March 28; normal lows fall below 32°
4Wettest stretchMay through July: 12.4 of the year’s 37.6 inches
NOVEMBER 14 IN THE RECORD

On November 14 Cornell normally reaches 51° and falls to 32°. The record high is 77°, in 1999; the record low 6°, in 1986. The most rain on this date, 1.17 in, fell in 1926.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high33°38°50°63°74°83°86°84°79°66°51°38°
Normal low15°19°29°39°51°61°64°62°54°42°31°21°
Rain and melt, in1.991.842.513.664.603.983.823.483.873.082.612.21
Snow, inches5.95.23.20.80.00.00.00.00.00.01.15.5
Record high69° (1909)74° (2024)88° (2026)93° (1986)103° (1934)105° (1934)111° (1936)105° (1936)104° (1913)93° (2025)82° (1950)71° (2012)
Record low−25° (1985)−28° (1905)−14° (1943)6° (2018)24° (1966)36° (2003)42° (1904)38° (1986)22° (1899)10° (1925)−9° (1930)−24° (1924)

Normals 1991–2020 and records since 1895 at Minonk, 17 miles west-southwest, 110 ft higher. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Cornell on the Forecast Network

Neighboring plates

Normal IL · 35 MI 35 miles southwest Bloomington IL · 38 MI 38 miles south Chicago IL · 80 MI 80 miles northeast Madison WI · 149 MI 149 miles north Indianapolis IN · 160 MI 160 miles southeast Fort Wayne IN · 187 MI 187 miles east
FORECASTCITY
Map of Cornell, Illinois. Explore the plate
ILLINOIS · LIVINGSTON

Cornell

441 people, 640 ft above sea level in Livingston County.

640 ftElevation
441People
1 sq miLand
Sunny 42°
SunnyDew point 30°
1

Today in Cornell

NEXT 15 HOURS
Now clear day 38° 0%
7p clear night 34° 0%
10p clear night 30° 0%
1a mostly clear night 28° 0%
4a mostly clear night 26° 0%
7a partly cloudy day 27° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
24
38
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
25
52
A
Mon0%
Sunny Sunny
29
55
A
Tue0%
Sunny Sunny
33
57
A
Wed0%
Mostly sunny Mostly sunny
42
60
B
Thu10%
Mostly sunny Mostly sunny
43
63
B
Fri10%
Partly cloudy Partly cloudy
47
64
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1999 · NOV. 14, 1999

77°, the hottest this week of the year has been since 1895.

2

What Cornell stands on

Cornell’s center stands about 640 ft above sea level. Within three miles the land runs from 600 ft to 680 ft, a difference of 80 ft: gently rolling country.

Cornell, west to east Cornell640 ftVermilion Riverabout 610 ftHigh point770 ft ← WE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center640 ft
Within 3 miles600 to 680 ft
Lie of the landGently rolling (80 ft of relief)
Rock at the surfaceShelburn-Patoka Formations undivided
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Cornell’s year

Cornell has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 15° in January. A normal year brings about 22 inches of snow; with the rain, that comes to about 38 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 37.6 in
July, average86° / 64° · high / low, the warmest month
January, average33° / 15° · high / low, the coldest month
Rain and melted snow37.6 in · wettest months: May and June
Snow a year21.7 in · snowiest: January
Hottest on record111°F · July 15, 1936
Coldest on record−28°F · February 13, 1905
Wettest day on record9.09 in · September 28, 2019
Snowiest day on record14.0 in · February 2, 2022
90° days a year27 · very few reach 100°
Nights at or below 32°135 · and 37 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 13, to the last in spring, about April 27 (median dates)
2Highs below freezing · Jan. 12 to Jan. 24; normal highs stay below 32°
3Lows below freezing · Nov. 12 to March 28; normal lows fall below 32°
4Wettest stretch · May through July: 12.4 of the year’s 37.6 inches
NOVEMBER 14 IN THE RECORD

On November 14 Cornell normally reaches 51° and falls to 32°. The record high is 77°, in 1999; the record low 6°, in 1986. The most rain on this date, 1.17 in, fell in 1926.

Normals 1991–2020 and records since 1895 at Minonk, 17 miles west-southwest, 110 ft higher. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,470 mito the Gulf of AmericaVermilion → Illinois → Mississippi

A raindrop that lands in Cornell reaches the Gulf of America by way of the Vermilion, the Illinois and the Mississippi: about 1,470 river miles.

Lake on the way: Peoria Lake.

1,190 miles of the trip are on the Mississippi.