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

Fayetteville

286 people, 420 ft above sea level in St. Clair County.

420 ftElevation, city center
286People, 2024 estimate
0 sq miLand area
Sunny 49°
Sunny now Dew point 25° · N 6 mph · high 48°
City of Fayetteville River Interstate 2 miles
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The Fayetteville 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 Fayetteville

NWS forecast and National Blend of Models · updated 2:00 PM CST
RIGHT NOW Scott AFB/MidAmerica Airport (KBLV) · 1:55 PM
Sunny
49° Sunny Feels like 47° · high of 48° near 2 PM
WindN 6 mphno gusts
Humidity39%falling to 50% this afternoon
Pressure30.28 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 25° · Dry40° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 60.05 in · 8 dry days
ALERTS & OUTLOOKS
No watches or warnings for St. Clair County
NWS St Louis and the Storm Prediction Center · checked 2:45 PM
SUN & MOON
↑ 6:39 AM4:47 PM ↓
10 h 8 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
27
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
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
clear day
clear night
clear night
clear night
mostly clear night
mostly clear night
partly cloudy day
partly cloudy day
partly cloudy day
mostly clear night
mostly clear night
clear night
mostly clear night
mostly clear night
clear day
clear day
clear day
clear night
clear night
clear night
clear night
mostly clear night
clear day
clear day
TEMPERATURE °F
48°
28°
52°
30°
54°
32°
CHANCE OF RAIN
50%
WIND, MPH
0
0
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HOW IT FEELS · DEW POINT
Dry: dew points 26 to 40° More humid: 38° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 56° / 36°
SAT Nov. 14 Sunny Sunny
48° 27°
0% rain — NNW 0 A
SUN Nov. 15 Partly cloudy; warmer Partly cloudy; warmer
56° 28°
0% rain — NNE 0 A
MON Nov. 16 Sunny Sunny
58° 31°
0% rain — ESE 0 A
TUE Nov. 17 Sunny Sunny
60° 34°
0% rain — SE 6 A
WED Nov. 18 Mostly sunny Mostly sunny
64° 44°
0% rain — SSE 10 B
THU Nov. 19 Partly cloudy Partly cloudy
67° 46°
10% rain — SSW 6 B
FRI Nov. 20 Mostly sunny Mostly sunny
70° 49°
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 Fayetteville about 5,000 feet above the ground was over the open Pacific three days ago, about 3,050 miles back along its path. It came down from about 14,800 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the northern Rockies. 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 1959 Nov. 17, 1959

The coldest this week has been

7° on Nov. 17, 1959, the coldest reading for this week of the year since 1948. Next is 8° in 2019.

8°
7°
20191959
Source: NOAA RCC-ACIS, the Belleville Siu Research record since 1948.
MILE2
THE GROUND

What Fayetteville stands on

Fayetteville’s center stands about 420 ft above sea level. Within three miles the land runs from 370 ft to 440 ft, a difference of 70 ft: gently rolling country. The highest named summit within 15 miles is Turkey Hill, about 610 ft, 8 miles northwest.

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.

Fayetteville, cut in half from northwest to southeast

A section northwest to southeast, 24 miles through the town center
400 ft500 ft600 ft FAYETTEVILLE420 ftHigh point of the line600 ftSilver Creekabout 410 ft ← NW · BellevilleSE →

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 24 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 Fayetteville’s rain goes

A raindrop that lands in Fayetteville reaches the Gulf of America by way of the Kaskaskia and the Mississippi: about 1,120 river miles.

THE WAY DOWN, TO SCALE
Fayetteville≈ 1,120 mi · the Gulf of America
FROM THE CENTER OF FAYETTEVILLE ≈ 1,120 mi to the Gulf of America Kaskaskia → Mississippi

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

MILE5
THE ALMANAC

Fayetteville’s year

1991–2020 normals · records since 1948 · Belleville Siu Research, 10 mi north-northwest

Fayetteville has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 24° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 43 inches of water.

43°24°49°28°59°36°71°46°79°56°87°64°90°68°89°65°83°57°73°47°58°37°46°28° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY FAYETTEVILLE 43.4 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average90° / 68°high / low, the warmest month
January, average43° / 24°high / low, the coldest month
Rain and melted snow43.4 inwettest months: May and April
Snow a year11.2 insnowiest: January
Hottest on record110°FJuly 14, 1954
Coldest on record−27°FJanuary 17, 1977
Wettest day on record8.15 inJune 15, 1957
Snowiest day on record14.8 inJanuary 31, 1982
90° days a year53about 2 of them 100° or more
Nights at or below 32°93and 15 days that stay below freezing
Climate typeHumid subtropicalKöppen Cfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 14, to the last in spring, about April 12 (median dates)
2Highs of 90° and upJune 28 to Aug. 14; normal highs reach 90°
3Lows below freezingNov. 29 to March 3; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Fayetteville normally reaches 59° and falls to 37°. The record high is 82°, in 1999; the record low 11°, in 1986. The most rain on this date, 3.23 in, fell in 1993.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high43°49°59°71°79°87°90°89°83°73°58°46°
Normal low24°28°36°46°56°64°68°65°57°47°37°28°
Rain and melt, in2.562.163.444.905.054.624.033.923.353.123.602.61
Snow, inches3.43.31.00.00.00.00.00.00.00.00.62.9
Record high75° (1950)83° (2024)92° (2026)91° (2007)97° (1953)106° (2012)110° (1954)105° (2007)103° (1954)96° (2019)84° (2016)78° (2025)
Record low−27° (1977)−21° (1982)−8° (1978)18° (2007)28° (1976)38° (1972)43° (1972)39° (1986)26° (1995)19° (2024)2° (1991)−19° (1989)

Normals 1991–2020 and records since 1948 at Belleville Siu Research, 10 miles north-northwest. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Fayetteville on the Forecast Network

Neighboring plates

Belleville IL · 14 MI 14 miles northwest St. Louis MO · 30 MI 30 miles northwest Springfield IL · 98 MI 98 miles north Evansville IN · 126 MI 126 miles east Columbia MO · 142 MI 142 miles west Clarksville TN · 184 MI 184 miles southeast
FORECASTCITY
Map of Fayetteville, Illinois. Explore the plate
ILLINOIS · ST. CLAIR

Fayetteville

286 people, 420 ft above sea level in St. Clair County.

420 ftElevation
286People
0 sq miLand
Sunny 49°
SunnyDew point 25°
1

Today in Fayetteville

NEXT 15 HOURS
Now clear day 48° 0%
5p clear night 44° 0%
8p clear night 37° 0%
11p clear night 34° 0%
2a clear night 30° 0%
5a mostly clear night 29° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
27
48
A
Sun0%
Partly cloudy; warmer Partly cloudy; warmer
28
56
A
Mon0%
Sunny Sunny
31
58
A
Tue0%
Sunny Sunny
34
60
A
Wed0%
Mostly sunny Mostly sunny
44
64
B
Thu10%
Partly cloudy Partly cloudy
46
67
B
Fri10%
Mostly sunny Mostly sunny
49
70
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1959 · NOV. 17, 1959

7°, the coldest this week of the year has been since 1948.

2

What Fayetteville stands on

Fayetteville’s center stands about 420 ft above sea level. Within three miles the land runs from 370 ft to 440 ft, a difference of 70 ft: gently rolling country. The highest named summit within 15 miles is Turkey Hill, about 610 ft, 8 miles northwest.

Fayetteville, northwest to southeast Fayetteville420 ftHigh point600 ftSilver Creekabout 410 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center420 ft
Within 3 miles370 to 440 ft
Lie of the landGently rolling (70 ft of relief)
High point nearbyTurkey Hill, 610 ft, 8 mi northwest
Rock at the surfaceShelburn-Patoka Formations undivided
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Fayetteville’s year

Fayetteville has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 24° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 43 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 43.4 in
July, average90° / 68° · high / low, the warmest month
January, average43° / 24° · high / low, the coldest month
Rain and melted snow43.4 in · wettest months: May and April
Snow a year11.2 in · snowiest: January
Hottest on record110°F · July 14, 1954
Coldest on record−27°F · January 17, 1977
Wettest day on record8.15 in · June 15, 1957
Snowiest day on record14.8 in · January 31, 1982
90° days a year53 · about 2 of them 100° or more
Nights at or below 32°93 · and 15 days that stay below freezing
Climate typeHumid subtropical · Köppen Cfa
1Freeze season · from the first fall freeze, about Oct. 14, to the last in spring, about April 12 (median dates)
2Highs of 90° and up · June 28 to Aug. 14; normal highs reach 90°
3Lows below freezing · Nov. 29 to March 3; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Fayetteville normally reaches 59° and falls to 37°. The record high is 82°, in 1999; the record low 11°, in 1986. The most rain on this date, 3.23 in, fell in 1993.

Normals 1991–2020 and records since 1948 at Belleville Siu Research, 10 miles north-northwest. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,120 mito the Gulf of AmericaKaskaskia → Mississippi

A raindrop that lands in Fayetteville reaches the Gulf of America by way of the Kaskaskia and the Mississippi: about 1,120 river miles.