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

Columbia

10,919 people, 500 ft above sea level in Monroe County.

500 ftElevation, city center
10,919People, 2024 estimate
11 sq miLand area
Sunny 46°
Sunny now Dew point 25° · Calm · high 46°
City of Columbia River Interstate 2 miles
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The Columbia 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 Columbia

NWS forecast and National Blend of Models · updated 2:00 PM CST
RIGHT NOW St. Louis Lambert International Airport (KSTL) · 1:51 PM
Sunny
46° Sunny Feels like 46° · high of 46° near 2 PM
WindCalmno gusts
Humidity43%falling to 49% this afternoon
Pressure30.30 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 25° · Dry38° 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 Monroe County
NWS St Louis and the Storm Prediction Center · checked 2:45 PM
SUN & MOON
↑ 6:41 AM4:49 PM ↓
10 h 7 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
mostly clear night
mostly clear night
clear night
clear day
clear day
clear day
mostly clear night
clear night
clear night
clear night
clear night
clear day
clear day
TEMPERATURE °F
46°
32°
50°
34°
53°
36°
CHANCE OF RAIN
50%
WIND, MPH
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
5
3
3
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HOW IT FEELS · DEW POINT
Dry: dew points 28 to 38° 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 56° / 38°
SAT Nov. 14 Sunny Sunny
46° 30°
0% rain — NNW 0 A
SUN Nov. 15 Partly cloudy; warmer Partly cloudy; warmer
54° 32°
0% rain — NE 0 A
MON Nov. 16 Sunny Sunny
57° 35°
0% rain — SE 0 A
TUE Nov. 17 Sunny Sunny
59° 38°
0% rain — SE 8 A
WED Nov. 18 Partly cloudy Partly cloudy
63° 47°
10% rain — SSE 14 B
THU Nov. 19 Partly cloudy Partly cloudy
66° 49°
10% rain — SW 8 B
FRI Nov. 20 Partly cloudy Partly cloudy
68° 53°
10% rain — SSE 12 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 Columbia about 5,000 feet above the ground was over the open Pacific three days ago, about 2,820 miles back along its path. It came down from about 14,600 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 1989 Nov. 11, 1989

The hottest this week has been

85° on Nov. 11, 1989, the hottest reading for this week of the year since 1874. Next is 83° in 2016.

83°
85°
20161989
Source: NOAA RCC-ACIS, the St Louis Area threaded record since 1874.
MILE2
THE GROUND

What Columbia stands on

Columbia’s center stands about 500 ft above sea level. Within three miles the land runs from 400 ft to 690 ft, a difference of 290 ft: rolling country. The highest named summit within 15 miles is Frisco Hill, about 860 ft, 14 miles west-southwest.

The section below crosses 6 rock units mapped at the surface.

Valmeyer to East St. Louis, cut in half

A section southwest to northeast, 24 miles through the town center
400 ft500 ft600 ft700 ft COLUMBIA500 ftHigh point of the line760 ftFountain Creekabout 460 ftPrairie duPont Creekabout 420 ft ← SW · ValmeyerEast St. Louis · NE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 54×. 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

St. Louis Limestone

Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 7 mi of the line.

Ste. Genevieve Limestone

Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 7 mi of the line.

Warsaw Formation and Salem Limestone

Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 4 mi of the line.

Tradewater Formation

Shale, sandstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million years old. About 4 mi of the line.

Lower Pope Group (Aux Vases Sandstone through Glen Dean Limestone)

Limestone, sandstone, shale. Age: Middle Mississippian, 331 to 347 million years old. About 2 mi of the line.

Meppen Limestone, Fern Glen Formation, and Burlington-Keokuk Limestone

Limestone. Age: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 0.3 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 Columbia’s rain goes

A raindrop that lands in Columbia reaches the Gulf of America by way of Palmer Creek and the Mississippi: about 1,140 river miles.

THE WAY DOWN, TO SCALE
Columbia≈ 1,140 mi · the Gulf of America
FROM THE CENTER OF COLUMBIA ≈ 1,140 mi to the Gulf of America Palmer Creek → Mississippi

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

MILE5
THE ALMANAC

Columbia’s year

1991–2020 normals · records since 1874 · St Louis Lambert International Airport, 23 mi north-northwest

Columbia has a hot-summer humid continental climate. Summer afternoons average 90° in July; winter nights fall to about 24° in January. A normal year brings about 17 inches of snow; with the rain, that comes to about 42 inches of water.

40°24°46°28°57°37°68°47°77°58°86°67°90°71°88°69°81°61°69°49°55°37°45°29° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY COLUMBIA 41.7 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average90° / 71°high / low, the warmest month
January, average40° / 24°high / low, the coldest month
Rain and melted snow41.7 inwettest months: May and April
Snow a year16.6 insnowiest: January
Hottest on record115°FJuly 14, 1954
Coldest on record−22°FJanuary 5, 1884
Wettest day on record8.64 inJuly 26, 2022
Snowiest day on record12.8 inFebruary 26, 1906
90° days a year47about 3 of them 100° or more
Nights at or below 32°85and 19 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Nov. 2, to the last in spring, about April 2 (median dates)
2Highs of 90° and upJuly 7 to Aug. 4; normal highs reach 90°
3Lows below freezingNov. 30 to March 2; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Columbia normally reaches 56° and falls to 38°. The record high is 81°, in 1971; the record low 13°, in 1940. The most rain on this date, 1.86 in, fell in 1993.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high40°46°57°68°77°86°90°88°81°69°55°45°
Normal low24°28°37°47°58°67°71°69°61°49°37°29°
Rain and melt, in2.592.233.504.734.824.493.933.382.963.153.422.50
Snow, inches5.74.32.30.20.00.00.00.00.00.00.93.2
Record high77° (1950)86° (2024)93° (2026)93° (2002)98° (1953)108° (2012)115° (1954)110° (1934)104° (2011)94° (2019)86° (1937)78° (2025)
Record low−22° (1884)−18° (1905)−5° (1960)20° (1936)31° (1976)43° (1969)51° (1972)47° (1986)32° (1942)21° (1925)1° (1964)−16° (1989)

Normals 1991–2020 and records since 1874 from the St Louis Area threaded record (St Louis Lambert International Airport, 23 miles north-northwest). NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Columbia on the Forecast Network

Neighboring plates

St. Louis MO · 12 MI 12 miles north O'Fallon MO · 35 MI 35 miles northwest Springfield IL · 97 MI 97 miles north Decatur IL · 119 MI 119 miles northeast Columbia MO · 119 MI 119 miles west Evansville IN · 149 MI 149 miles east
FORECASTCITY
Map of Columbia, Illinois. Explore the plate
ILLINOIS · MONROE

Columbia

10,919 people, 500 ft above sea level in Monroe County.

500 ftElevation
10,919People
11 sq miLand
Sunny 46°
SunnyDew point 25°
1

Today in Columbia

NEXT 15 HOURS
Now clear day 46° 0%
5p clear night 43° 0%
8p clear night 39° 0%
11p clear night 36° 0%
2a mostly clear night 33° 0%
5a mostly clear night 32° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
30
46
A
Sun0%
Partly cloudy; warmer Partly cloudy; warmer
32
54
A
Mon0%
Sunny Sunny
35
57
A
Tue0%
Sunny Sunny
38
59
A
Wed10%
Partly cloudy Partly cloudy
47
63
B
Thu10%
Partly cloudy Partly cloudy
49
66
B
Fri10%
Partly cloudy Partly cloudy
53
68
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1989 · NOV. 11, 1989

85°, the hottest this week of the year has been since 1874.

2

What Columbia stands on

Columbia’s center stands about 500 ft above sea level. Within three miles the land runs from 400 ft to 690 ft, a difference of 290 ft: rolling country. The highest named summit within 15 miles is Frisco Hill, about 860 ft, 14 miles west-southwest.

Columbia, southwest to northeast Columbia500 ftFountain Creekabout 460 ftPrairie duPont Creekabout 420 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 102×. Colors: rock at the surface.
Elevation, center500 ft
Within 3 miles400 to 690 ft
Lie of the landRolling (290 ft of relief)
High point nearbyFrisco Hill, 860 ft, 14 mi west-southwest
5

Columbia’s year

Columbia has a hot-summer humid continental climate. Summer afternoons average 90° in July; winter nights fall to about 24° in January. A normal year brings about 17 inches of snow; with the rain, that comes to about 42 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 41.7 in
July, average90° / 71° · high / low, the warmest month
January, average40° / 24° · high / low, the coldest month
Rain and melted snow41.7 in · wettest months: May and April
Snow a year16.6 in · snowiest: January
Hottest on record115°F · July 14, 1954
Coldest on record−22°F · January 5, 1884
Wettest day on record8.64 in · July 26, 2022
Snowiest day on record12.8 in · February 26, 1906
90° days a year47 · about 3 of them 100° or more
Nights at or below 32°85 · and 19 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Nov. 2, to the last in spring, about April 2 (median dates)
2Highs of 90° and up · July 7 to Aug. 4; normal highs reach 90°
3Lows below freezing · Nov. 30 to March 2; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Columbia normally reaches 56° and falls to 38°. The record high is 81°, in 1971; the record low 13°, in 1940. The most rain on this date, 1.86 in, fell in 1993.

Normals 1991–2020 and records since 1874 from the St Louis Area threaded record (St Louis Lambert International Airport, 23 miles north-northwest). NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,140 mito the Gulf of AmericaPalmer Creek → Mississippi

A raindrop that lands in Columbia reaches the Gulf of America by way of Palmer Creek and the Mississippi: about 1,140 river miles.