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

Radom

181 people, 530 ft above sea level in Washington County.

530 ftElevation, city center
181People, 2024 estimate
1 sq miLand area
Sunny 49°
Sunny now Dew point 26° · W 5 mph · high 46°
City of Radom River Interstate 2 miles
Explore the plate Order a print

The Radom 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 Radom

NWS forecast and National Blend of Models · updated 3:00 PM CST
RIGHT NOW Mount Vernon Airport (KMVN) · 2:56 PM
Sunny
49° Sunny Feels like 47° · high of 46° near 3 PM
WindW 5 mphno gusts
Humidity41%rising to 89% by morning
Pressure30.29 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 26° · Dry40° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 60.03 in · 8 dry days
ALERTS & OUTLOOKS
No watches or warnings for Washington County
NWS St Louis and the Storm Prediction Center · checked 3:45 PM
SUN & MOON
↑ 6:37 AM4:45 PM ↓
10 h 8 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
24
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
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
clear day
clear night
clear night
clear night
clear night
mostly sunny
mostly sunny
mostly sunny
mostly sunny
clear night
clear night
clear night
mostly clear night
mostly sunny
clear day
clear day
clear day
clear night
clear night
clear night
mostly clear night
mostly sunny
clear day
clear day
TEMPERATURE °F
46°
26°
53°
28°
53°
28°
CHANCE OF RAIN
50%
WIND, MPH
1
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
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2
5
HOW IT FEELS · DEW POINT
Dry: dew points 23 to 37° ↑ Humid air returns More humid: 37° 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° / 35°
SAT Nov. 14 Sunny Sunny
46° 23°
0% rain — NW 1 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
55° 23°
0% rain — NNE 0 A
MON Nov. 16 Sunny Sunny
56° 25°
0% rain — ENE 0 A
TUE Nov. 17 Partly cloudy Partly cloudy
59° 27°
0% rain — SE 5 A
WED Nov. 18 Mostly sunny Mostly sunny
63° 36°
0% rain — SSE 6 B
THU Nov. 19 Mostly sunny Mostly sunny
66° 41°
0% rain — S 5 B
FRI Nov. 20 Mostly sunny Mostly sunny
69° 43°
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 Radom about 5,000 feet above the ground was over the Canadian Prairies three days ago, and over the Great Lakes a day ago, about 1,640 miles back along its path. Near the ground the air came from the southern Plains; at 10,000 feet, from the northern Rockies. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK, SEVEN YEARS AGO Nov. 13, 2019

The coldest this week has been

6° on Nov. 13, 2019, the coldest reading for this week of the year since 1895. Next is 8° in 1959.

8°
6°
19592019
Source: NOAA RCC-ACIS, the Mount Vernon Outland Airport record since 1895.
MILE2
THE GROUND

What Radom stands on

Radom’s center stands about 530 ft above sea level. Within three miles the land runs from 490 ft to 590 ft, a difference of 100 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.

Nashville to Waltonville, cut in half

A section northwest to southeast, 24 miles through the town center
400 ft500 ft RADOM530 ftNashville540 ftHigh point of the line580 ftWaltonville430 ftBig Muddy Riverabout 440 ft ← NW · NashvilleWaltonville · 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 23 mi of the line.

Shelburn-Patoka Formations undivided

Shale, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 2 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 Radom’s rain goes

A raindrop that lands in Radom reaches the Gulf of America by way of the Little Muddy, the Big Muddy and the Mississippi: about 1,170 river miles.

THE WAY DOWN, TO SCALE
Radom≈ 1,170 mi · the Gulf of America
FROM THE CENTER OF RADOM ≈ 1,170 mi to the Gulf of America Little Muddy → Big Muddy → Mississippi

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

MILE5
THE ALMANAC

Radom’s year

1991–2020 normals · records since 1895 · Mount Vernon Outland Airport, 18 mi east

Radom has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 22° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 45 inches of water.

38°22°44°25°54°34°65°44°74°55°82°64°86°67°85°65°79°57°67°45°54°34°43°26° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY RADOM 45.0 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average86° / 67°high / low, the warmest month
January, average38° / 22°high / low, the coldest month
Rain and melted snow45.0 inwettest months: May and April
Snow a year10.4 insnowiest: January
Hottest on record114°FJuly 14, 1936
Coldest on record−22°FFebruary 10, 1982
Wettest day on record6.17 inAugust 16, 1946
Snowiest day on record14.0 inFebruary 21, 1912
90° days a year25very few reach 100°
Nights at or below 32°108and 21 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 18, to the last in spring, about April 11 (median dates)
2Lows below freezingNov. 21 to March 11; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Radom normally reaches 54° and falls to 35°. The record high is 78°, in 1964; the record low 8°, in 1986. The most rain on this date, 4.41 in, fell in 1993.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high38°44°54°65°74°82°86°85°79°67°54°43°
Normal low22°25°34°44°55°64°67°65°57°45°34°26°
Rain and melt, in2.602.624.004.965.064.843.783.333.373.533.992.89
Snow, inches3.23.11.00.00.00.00.00.00.00.20.42.5
Record high75° (1943)79° (1972)92° (1907)91° (1946)99° (1941)105° (1936)114° (1936)111° (1936)105° (1939)96° (1938)86° (1938)78° (1970)
Record low−21° (1994)−22° (1982)−10° (1978)17° (1923)29° (1903)36° (1924)46° (1947)42° (1986)23° (1899)18° (1981)−5° (1929)−19° (1989)

Normals 1991–2020 and records since 1895 at Mount Vernon Outland Airport, 18 miles east. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Radom on the Forecast Network

Neighboring plates

Carbondale IL · 39 MI 39 miles south St. Louis MO · 62 MI 62 miles northwest Louisville KY · 188 MI 188 miles east Louisville KY · 193 MI 193 miles east Nashville TN · 197 MI 197 miles southeast
FORECASTCITY
Map of Radom, Illinois. Explore the plate
ILLINOIS · WASHINGTON

Radom

181 people, 530 ft above sea level in Washington County.

530 ftElevation
181People
1 sq miLand
Sunny 49°
SunnyDew point 26°
1

Today in Radom

NEXT 15 HOURS
Now clear day 46° 0%
6p clear night 40° 0%
9p clear night 33° 0%
12a clear night 30° 0%
3a clear night 28° 0%
6a mostly clear night 26° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
23
46
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
23
55
A
Mon0%
Sunny Sunny
25
56
A
Tue0%
Partly cloudy Partly cloudy
27
59
A
Wed0%
Mostly sunny Mostly sunny
36
63
B
Thu0%
Mostly sunny Mostly sunny
41
66
B
Fri0%
Mostly sunny Mostly sunny
43
69
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, SEVEN YEARS AGO · NOV. 13, 2019

6°, the coldest this week of the year has been since 1895.

2

What Radom stands on

Radom’s center stands about 530 ft above sea level. Within three miles the land runs from 490 ft to 590 ft, a difference of 100 ft: gently rolling country.

Radom, northwest to southeast Radom530 ftHigh point580 ftBig Muddy Riverabout 440 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center530 ft
Within 3 miles490 to 590 ft
Lie of the landGently rolling (100 ft of relief)
Rock at the surfaceBond Formation
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Radom’s year

Radom has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 22° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 45 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 45.0 in
July, average86° / 67° · high / low, the warmest month
January, average38° / 22° · high / low, the coldest month
Rain and melted snow45.0 in · wettest months: May and April
Snow a year10.4 in · snowiest: January
Hottest on record114°F · July 14, 1936
Coldest on record−22°F · February 10, 1982
Wettest day on record6.17 in · August 16, 1946
Snowiest day on record14.0 in · February 21, 1912
90° days a year25 · very few reach 100°
Nights at or below 32°108 · and 21 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 18, to the last in spring, about April 11 (median dates)
2Lows below freezing · Nov. 21 to March 11; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Radom normally reaches 54° and falls to 35°. The record high is 78°, in 1964; the record low 8°, in 1986. The most rain on this date, 4.41 in, fell in 1993.

Normals 1991–2020 and records since 1895 at Mount Vernon Outland Airport, 18 miles east. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,170 mito the Gulf of AmericaLittle Muddy → Big Muddy → Mississippi

A raindrop that lands in Radom reaches the Gulf of America by way of the Little Muddy, the Big Muddy and the Mississippi: about 1,170 river miles.