FORECAST CITY
Sign in
Shaded-relief map of Scott AFB, Illinois: rivers, roads, the city limits and where the water drains.
ILLINOIS · ST. CLAIR COUNTY

Scott AFB

3,688 people, 440 ft above sea level in St. Clair County.

440 ftElevation, city center
3,688People, 2024 estimate
4 sq miLand area
Sunny 46°
Sunny now Dew point 26° · WNW 3 mph · high 46°
City of Scott AFB River Interstate 2 miles
Explore the plate Order a print

The Scott AFB 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 Scott AFB

NWS forecast and National Blend of Models · updated 12:00 PM CST
RIGHT NOW St. Louis Lambert International Airport (KSTL) · 12:51 PM
Sunny
46° Sunny Feels like 45° · high of 46° near 1 PM
WindWNW 3 mphno gusts
Humidity45%falling to 58% this afternoon
Pressure30.32 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 26° · Dry39° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 40.03 in · 10 dry days
ALERTS & OUTLOOKS
No watches or warnings for St. Clair County
NWS St Louis and the Storm Prediction Center · checked 1:15 PM
SUN & MOON
↑ 6:40 AM4:47 PM ↓
10 h 7 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
39
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
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
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
mostly clear night
mostly clear night
mostly clear night
clear day
clear day
clear day
clear night
clear night
clear night
clear night
clear night
clear day
clear day
TEMPERATURE °F
46°
31°
50°
33°
52°
36°
CHANCE OF RAIN
50%
WIND, MPH
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
5
4
3
4
6
HOW IT FEELS · DEW POINT
Dry: dew points 28 to 39°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 56° / 38°
SAT Nov. 14 Sunny Sunny
46° 30°
0% rain — N 0 A
SUN Nov. 15 Partly cloudy; warmer Partly cloudy; warmer
54° 31°
0% rain — NE 0 A
MON Nov. 16 Sunny Sunny
56° 34°
0% rain — SE 0 A
TUE Nov. 17 Sunny Sunny
59° 37°
0% rain — SE 8 A
WED Nov. 18 Partly cloudy Partly cloudy
63° 47°
0% rain — SSE 14 B
THU Nov. 19 Partly cloudy Partly cloudy
66° 50°
10% rain — SSW 8 C
FRI Nov. 20 Partly cloudy Partly cloudy
68° 52°
10% rain — SE 10 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 Scott AFB about 5,000 feet above the ground was over the open Pacific three days ago, about 3,040 miles back along its path. It came down from about 15,000 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 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 Scott AFB stands on

Scott AFB’s center stands about 440 ft above sea level. Within three miles the land runs from 410 ft to 640 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Clarks Mound, about 670 ft, 12 miles west-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.

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

Caseyville to Damiansville, cut in half

A section northwest to southeast, 24 miles through the town center
400 ft500 ft600 ft SCOTT AFB440 ftFairview Heights600 ftShiloh610 ftSilver Creekabout 430 ftMascoutah430 ftLow point400 ft ← NW · CaseyvilleDamiansville · 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

Shelburn-Patoka Formations undivided

Shale, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 24 mi of the line.

Carbondale Formation

Shale, sandstone, coal. Age: Middle Pennsylvanian to Late Pennsylvanian, 304 to 315 million years old. About 0.5 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 Scott AFB’s rain goes

A raindrop that lands in Scott AFB reaches the Gulf of America by way of Ash Creek, Loop Creek, Silver Creek, the Kaskaskia and the Mississippi: about 1,140 river miles.

THE WAY DOWN, TO SCALE
Scott AFB≈ 1,140 mi · the Gulf of America
FROM THE CENTER OF SCOTT AFB ≈ 1,140 mi to the Gulf of America Ash Creek → Loop Creek → Silver Creek → Kaskaskia → Mississippi

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

MILE5
THE ALMANAC

Scott AFB’s year

1991–2020 normals · records since 1948 · Belleville Siu Research

Scott AFB 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 SCOTT AFB 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 Scott AFB 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, here. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Scott AFB on the Forecast Network

Neighboring plates

St. Louis MO · 22 MI 22 miles west St. Charles MO · 40 MI 40 miles northwest Springfield IL · 87 MI 87 miles north Evansville IN · 132 MI 132 miles east Columbia MO · 136 MI 136 miles west Clarksville TN · 194 MI 194 miles southeast
FORECASTCITY
Map of Scott AFB, Illinois. Explore the plate
ILLINOIS · ST. CLAIR

Scott AFB

3,688 people, 440 ft above sea level in St. Clair County.

440 ftElevation
3,688People
4 sq miLand
Sunny 46°
SunnyDew point 26°
1

Today in Scott AFB

NEXT 15 HOURS
Now clear day 46° 0%
4p clear day 45° 0%
7p clear night 40° 0%
10p clear night 36° 0%
1a clear night 33° 0%
4a mostly clear night 32° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
30
46
A
Sun0%
Partly cloudy; warmer Partly cloudy; warmer
31
54
A
Mon0%
Sunny Sunny
34
56
A
Tue0%
Sunny Sunny
37
59
A
Wed0%
Partly cloudy Partly cloudy
47
63
B
Thu10%
Partly cloudy Partly cloudy
50
66
C
Fri10%
Partly cloudy Partly cloudy
52
68
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 Scott AFB stands on

Scott AFB’s center stands about 440 ft above sea level. Within three miles the land runs from 410 ft to 640 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Clarks Mound, about 670 ft, 12 miles west-northwest.

Scott AFB, northwest to southeast Scott AFB440 ftSilver Creekabout 430 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center440 ft
Within 3 miles410 to 640 ft
Lie of the landRolling (230 ft of relief)
High point nearbyClarks Mound, 670 ft, 12 mi west-northwest
Rock at the surfaceShelburn-Patoka Formations undivided
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Scott AFB’s year

Scott AFB 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 Scott AFB 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, here. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,140 mito the Gulf of AmericaAsh Creek → Loop Creek → Silver Creek → Kaskaskia → Mississippi

A raindrop that lands in Scott AFB reaches the Gulf of America by way of Ash Creek, Loop Creek, Silver Creek, the Kaskaskia and the Mississippi: about 1,140 river miles.