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

Patoka

508 people, 510 ft above sea level in Marion County.

510 ftElevation, city center
508People, 2024 estimate
1 sq miLand area
Clear 44°
Clear now Dew point 28° · Calm · high 42°
City of Patoka River Interstate 2 miles
Explore the plate Order a print

The Patoka 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 Patoka

NWS forecast and National Blend of Models · updated 4:00 PM CST
RIGHT NOW Salem-Leckrone Airport (KSLO) · 4:55 PM
Clear
44° Clear Feels like 44° · high of 42° near 5 PM
WindCalmno gusts
Humidity52%rising to 100% by morning
Pressure30.29 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 28° · Dry40° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 50.03 in · 9 dry days
ALERTS & OUTLOOKS
No watches or warnings for Marion County
NWS St Louis and the Storm Prediction Center · checked 5:15 PM
SUN & MOON
↑ 6:37 AM4:44 PM ↓
10 h 6 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
23
GOODAir quality index · fine particles
Tomorrow: None, moderate. 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
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
clear night
clear night
clear night
clear night
mostly clear night
partly cloudy day
partly cloudy day
mostly sunny
clear night
clear night
clear night
clear night
clear night
clear day
clear day
clear day
clear night
clear night
clear night
clear night
mostly clear night
clear day
clear day
clear day
TEMPERATURE °F
42°
27°
52°
30°
53°
32°
CHANCE OF RAIN
50%
WIND, MPH
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
5
HOW IT FEELS · DEW POINT
Dry: dew points 27 to 40°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 55° / 34°
SAT Nov. 14 Sunny Sunny
42° 27°
0% rain — WNW 0 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
56° 29°
0% rain — NE 0 A
MON Nov. 16 Sunny Sunny
58° 31°
0% rain — ESE 0 A
TUE Nov. 17 Sunny Sunny
59° 34°
0% rain — SE 2 A
WED Nov. 18 Mostly sunny Mostly sunny
63° 43°
0% rain — SSE 6 B
THU Nov. 19 Mostly sunny Mostly sunny
67° 47°
0% rain — SSW 3 B
FRI Nov. 20 Mostly sunny Mostly sunny
70° 49°
0% rain — SSE 3 B
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 Patoka about 5,000 feet above the ground was over the open Pacific three days ago, and over the central Plains a day ago, about 2,930 miles back along its path. It came down from about 13,300 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from the northern Rockies. 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 1993 Nov. 13–14, 1993

The wettest two days this week has seen

5.15 inches of rain fell in two days, the most for this week of the year since records began in 1915. The next wettest, 3.31 inches, fell in 1992.

3.31″
5.15″
19921993
Source: NOAA RCC-ACIS, the Salem record since 1915.
MILE2
THE GROUND

What Patoka stands on

Patoka’s center stands about 510 ft above sea level. Within three miles the land runs from 470 ft to 540 ft, a difference of 70 ft: gently rolling country.

Under the town center the state geologic map shows Bond Formation (shale, sandstone, limestone), from the Late Pennsylvanian, 304 to 307 million years old.

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

Patoka, cut in half from northwest to southeast

A section northwest to southeast, 24 miles through the town center
500 ft600 ft PATOKA510 ftKaskaskia Riverabout 450 ftEast Fork Kaskaskia Riverabout 550 ftHigh point of the line660 ft ← NWAlma · SE →

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

Bond Formation

Shale, sandstone, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 17 mi of the line.

Mattoon Formation

Shale. Age: Late Pennsylvanian, 304 to 307 million years old. About 7 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 Patoka’s rain goes

A raindrop that lands in Patoka reaches the Gulf of America by way of the North Fork East Fork Kaskaskia, the Kaskaskia and the Mississippi: about 1,200 river miles.

THE WAY DOWN, TO SCALE
Patoka≈ 1,200 mi · the Gulf of America
FROM THE CENTER OF PATOKA ≈ 1,200 mi to the Gulf of America North Fork East Fork Kaskaskia → Kaskaskia → Mississippi

Lake on the way: Carlyle Reservoir.

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

MILE5
THE ALMANAC

Patoka’s year

1991–2020 normals · records since 1915 · Salem, 11 mi southeast

Patoka has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 21° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 46 inches of water.

38°21°44°24°54°33°66°44°76°55°84°64°88°68°87°65°80°57°69°45°54°34°43°26° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY PATOKA 45.9 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average88° / 68°high / low, the warmest month
January, average38° / 21°high / low, the coldest month
Rain and melted snow45.9 inwettest months: June and May
Snow a year10.2 insnowiest: January
Hottest on record105°FJuly 8, 2012
Coldest on record−23°FJanuary 19, 1994
Wettest day on record6.36 inSeptember 9, 2018
Snowiest day on record13.5 inJanuary 31, 1982
90° days a year32very few reach 100°
Nights at or below 32°102and 23 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 28, to the last in spring, about April 9 (median dates)
2Lows below freezingNov. 20 to March 14; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Patoka normally reaches 55° and falls to 34°. The record high is 80°, in 1999; the record low 10°, in 1986. The most rain on this date, 4.85 in, fell in 1993.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high38°44°54°66°76°84°88°87°80°69°54°43°
Normal low21°24°33°44°55°64°68°65°57°45°34°26°
Rain and melt, in3.072.563.734.694.995.084.073.803.543.443.992.93
Snow, inches3.92.50.20.00.00.00.00.00.00.10.62.9
Record high71° (1943)78° (2024)90° (2026)91° (1987)100° (1944)104° (2012)105° (2012)105° (1983)101° (2026)94° (2026)82° (2000)74° (1982)
Record low−23° (1994)−23° (1982)−8° (1978)20° (1990)31° (1976)38° (1969)48° (1968)44° (1964)33° (1974)21° (1981)2° (1959)−20° (1989)

Normals 1991–2020 and records since 1915 at Salem, 11 miles southeast. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Patoka on the Forecast Network

Neighboring plates

St. Louis MO · 63 MI 63 miles west Clarksville TN · 179 MI 179 miles southeast Louisville KY · 185 MI 185 miles east Louisville KY · 191 MI 191 miles east
FORECASTCITY
Map of Patoka, Illinois. Explore the plate
ILLINOIS · MARION

Patoka

508 people, 510 ft above sea level in Marion County.

510 ftElevation
508People
1 sq miLand
Clear 44°
ClearDew point 28°
1

Today in Patoka

NEXT 15 HOURS
Now clear night 42° 0%
8p clear night 35° 0%
11p clear night 31° 0%
2a clear night 28° 0%
5a mostly clear night 27° 0%
8a mostly sunny 34° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
27
42
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
29
56
A
Mon0%
Sunny Sunny
31
58
A
Tue0%
Sunny Sunny
34
59
A
Wed0%
Mostly sunny Mostly sunny
43
63
B
Thu0%
Mostly sunny Mostly sunny
47
67
B
Fri0%
Mostly sunny Mostly sunny
49
70
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1993 · NOV. 13–14, 1993

5.15 inches in two days, the most for this week since 1915.

2

What Patoka stands on

Patoka’s center stands about 510 ft above sea level. Within three miles the land runs from 470 ft to 540 ft, a difference of 70 ft: gently rolling country.

Patoka, northwest to southeast Patoka510 ftKaskaskia Riverabout 450 ftEast Fork Kaskaskia Riverabout 550 ftHigh point660 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center510 ft
Within 3 miles470 to 540 ft
Lie of the landGently rolling (70 ft of relief)
Rock at the surfaceBond Formation
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Patoka’s year

Patoka has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 21° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 46 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 45.9 in
July, average88° / 68° · high / low, the warmest month
January, average38° / 21° · high / low, the coldest month
Rain and melted snow45.9 in · wettest months: June and May
Snow a year10.2 in · snowiest: January
Hottest on record105°F · July 8, 2012
Coldest on record−23°F · January 19, 1994
Wettest day on record6.36 in · September 9, 2018
Snowiest day on record13.5 in · January 31, 1982
90° days a year32 · very few reach 100°
Nights at or below 32°102 · and 23 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 28, to the last in spring, about April 9 (median dates)
2Lows below freezing · Nov. 20 to March 14; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Patoka normally reaches 55° and falls to 34°. The record high is 80°, in 1999; the record low 10°, in 1986. The most rain on this date, 4.85 in, fell in 1993.

Normals 1991–2020 and records since 1915 at Salem, 11 miles southeast. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,200 mito the Gulf of AmericaNorth Fork East Fork Kaskaskia → Kaskaskia → Mississippi

A raindrop that lands in Patoka reaches the Gulf of America by way of the North Fork East Fork Kaskaskia, the Kaskaskia and the Mississippi: about 1,200 river miles.

Lake on the way: Carlyle Reservoir.