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Shaded-relief map of Cavour, South Dakota: rivers, roads, the city limits and where the water drains.
SOUTH DAKOTA · BEADLE COUNTY

Cavour

129 people, 1,300 ft above sea level in Beadle County.

1,300 ftElevation, city center
129People, 2024 estimate
0 sq miLand area
Sunny 43°
Sunny now Dew point 28° · SSE 17 mph · high 44°
City of Cavour River Interstate 2 miles
Explore the plate Order a print

The Cavour 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 Cavour

NWS forecast and National Blend of Models · updated 11:00 AM CST
RIGHT NOW Huron Regional Airport (KHON) · 11:55 AM
Sunny
43° Sunny Feels like 35° · high of 44° near 3 PM
WindSSE 17 mphgusts 25
Humidity55%falling to 57% this afternoon
Pressure30.14 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 28° · Dry43° by Monday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday70% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 40.37 in · 10 dry days
ALERTS & OUTLOOKS
No watches or warnings for Beadle County
NWS Sioux Falls and the Storm Prediction Center · checked 12:47 PM
SUN & MOON
↑ 7:26 AM5:06 PM ↓
9 h 39 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
58
MODERATEAir quality index · coarse particles
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
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
clear day
mostly sunny
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly sunny
mostly sunny
clear day
clear day
clear night
mostly clear night
mostly clear night
partly cloudy night
mostly clear night
clear day
mostly sunny
mostly sunny
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
TEMPERATURE °F
40°
33°
52°
40°
58°
42°
CHANCE OF RAIN
50%
WIND, MPH
17
16
15
14
13
13
14
15
18
18
16
16
15
15
14
15
16
15
14
14
14
15
16
17
HOW IT FEELS · DEW POINT
Dry: dew points 27 to 30° ↑ Humid air returns More humid: 43° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 45° / 23°
SAT Nov. 14 Mostly sunny Mostly sunny
44° 32°
0% rain — SSE 17, gusts 28 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
54° 38°
0% rain — S 16, gusts 30 B
MON Nov. 16 Mostly sunny Mostly sunny
59° 41°
0% rain — S 16, gusts 28 B
TUE Nov. 17 Partly cloudy Partly cloudy
55° 43°
0% rain — S 17, gusts 30 B
WED Nov. 18 Mostly cloudy Mostly cloudy
58° 38°
20% rain — W 9 C
THU Nov. 19 Partly cloudy; cooler Partly cloudy; cooler
48° 35°
10% rain — ENE 6 C
FRI Nov. 20 Showers likely Showers likely
52° 38°
70% rain 0.05–1.2″ E 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 Cavour about 5,000 feet above the ground was over the Canadian Prairies three days ago, and over the central Plains a day ago, about 1,590 miles back along its path. Near the ground the air came from British Columbia; at 10,000 feet, from the Pacific Northwest. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK IN 2001 Nov. 16, 2001

The hottest this week has been

76° on Nov. 16, 2001, the hottest reading for this week of the year since 1881. Next is 75° in 1953.

75°
76°
19532001
Source: NOAA RCC-ACIS, the Huron Area threaded record since 1881.
MILE2
THE GROUND

What Cavour stands on

Cavour’s center stands about 1,300 ft above sea level. Within three miles the land runs from 1,290 ft to 1,340 ft, a difference of 50 ft: nearly flat ground.

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

Cavour, cut in half from west to east

A section west to east, 24 miles through the town center
1,300 ft1,400 ft CAVOUR1,300 ftJames Riverabout 1,250 ftHigh point of the line1,470 ft ← WE →

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

Pierre Shale

Shale, bentonite. Age: Late Cretaceous, 66 to 100 million years old. About 18 mi of the line.

Niobrara Formation

Chalk, marlstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 6 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 Cavour’s rain goes

A raindrop that lands in Cavour reaches the Gulf of America by way of the James, the Missouri and the Mississippi: about 2,200 river miles.

THE WAY DOWN, TO SCALE
Cavour≈ 2,200 mi · the Gulf of America
FROM THE CENTER OF CAVOUR ≈ 2,200 mi to the Gulf of America James → Missouri → Mississippi

1,170 miles of the trip are on the Mississippi.

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

MILE5
THE ALMANAC

Cavour’s year

1991–2020 normals · records since 1881 · Huron Regional Airport, 9 mi west

Cavour has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 6° in January. A normal year brings about 44 inches of snow; with the rain, that comes to about 23 inches of water.

26°6°31°10°44°22°58°34°70°46°80°57°86°62°83°59°76°50°60°35°44°22°30°11° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY CAVOUR 23.3 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average86° / 62°high / low, the warmest month
January, average26° / 6°high / low, the coldest month
Rain and melted snow23.3 inwettest months: June and May
Snow a year44.4 insnowiest: February
Hottest on record112°FJuly 10, 1966
Coldest on record−43°FJanuary 12, 1912
Wettest day on record5.31 inJune 18, 1967
Snowiest day on record19.0 inMarch 14, 2002
90° days a year22about 2 of them 100° or more
Nights at or below 32°167and 67 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 2, to the last in spring, about May 10 (median dates)
2Highs below freezingDec. 9 to Feb. 20; normal highs stay below 32°
3Lows below freezingOct. 23 to April 12; normal lows fall below 32°
4Wettest stretchMay through July: 9.9 of the year’s 23.3 inches
NOVEMBER 14 IN THE RECORD

On November 14 Cavour normally reaches 45° and falls to 23°. The record high is 74°, in 2025; the record low −18°, in 1959. The most rain on this date, 0.44 in, fell in 1928.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high26°31°44°58°70°80°86°83°76°60°44°30°
Normal low6°10°22°34°46°57°62°59°50°35°22°11°
Rain and melt, in0.580.751.152.523.153.892.832.592.431.950.820.66
Snow, inches7.88.96.65.50.00.00.00.00.01.45.88.4
Record high65° (2012)71° (1958)89° (1943)97° (1980)106° (1934)109° (1988)112° (1966)110° (1965)106° (1970)102° (1963)86° (1999)71° (1939)
Record low−43° (1912)−41° (1994)−25° (1897)−2° (1975)16° (2013)31° (1894)37° (1971)33° (1886)18° (1899)−6° (1925)−28° (1887)−34° (1884)

Normals 1991–2020 and records since 1881 from the Huron Area threaded record (Huron Regional Airport, 9 miles west). NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Cavour on the Forecast Network

Neighboring plates

Sioux Falls SD · 87 MI 87 miles southeast Sioux City IA · 154 MI 154 miles southeast
FORECASTCITY
Map of Cavour, South Dakota. Explore the plate
SOUTH DAKOTA · BEADLE

Cavour

129 people, 1,300 ft above sea level in Beadle County.

1,300 ftElevation
129People
0 sq miLand
Sunny 43°
SunnyDew point 28°
1

Today in Cavour

NEXT 15 HOURS
Now clear day 40° 0%
3p mostly sunny 44° 0%
6p partly cloudy night 40° 0%
9p mostly clear night 37° 0%
12a partly cloudy night 36° 0%
3a partly cloudy night 35° 0%
Rain
NEXT RAINFriday · 70%
→
Sat0%
Mostly sunny Mostly sunny
32
44
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
38
54
B
Mon0%
Mostly sunny Mostly sunny
41
59
B
Tue0%
Partly cloudy Partly cloudy
43
55
B
Wed20%
Mostly cloudy Mostly cloudy
38
58
C
Thu10%
Partly cloudy; cooler Partly cloudy; cooler
35
48
C
Fri70%
Showers likely Showers likely
38
52
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 2001 · NOV. 16, 2001

76°, the hottest this week of the year has been since 1881.

2

What Cavour stands on

Cavour’s center stands about 1,300 ft above sea level. Within three miles the land runs from 1,290 ft to 1,340 ft, a difference of 50 ft: nearly flat ground.

Cavour, west to east Cavour1,300 ftJames Riverabout 1,250 ftHigh point1,470 ft ← WE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center1,300 ft
Within 3 miles1,290 to 1,340 ft
Lie of the landNearly flat (50 ft of relief)
5

Cavour’s year

Cavour has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 6° in January. A normal year brings about 44 inches of snow; with the rain, that comes to about 23 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 23.3 in
July, average86° / 62° · high / low, the warmest month
January, average26° / 6° · high / low, the coldest month
Rain and melted snow23.3 in · wettest months: June and May
Snow a year44.4 in · snowiest: February
Hottest on record112°F · July 10, 1966
Coldest on record−43°F · January 12, 1912
Wettest day on record5.31 in · June 18, 1967
Snowiest day on record19.0 in · March 14, 2002
90° days a year22 · about 2 of them 100° or more
Nights at or below 32°167 · and 67 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 2, to the last in spring, about May 10 (median dates)
2Highs below freezing · Dec. 9 to Feb. 20; normal highs stay below 32°
3Lows below freezing · Oct. 23 to April 12; normal lows fall below 32°
4Wettest stretch · May through July: 9.9 of the year’s 23.3 inches
NOVEMBER 14 IN THE RECORD

On November 14 Cavour normally reaches 45° and falls to 23°. The record high is 74°, in 2025; the record low −18°, in 1959. The most rain on this date, 0.44 in, fell in 1928.

Normals 1991–2020 and records since 1881 from the Huron Area threaded record (Huron Regional Airport, 9 miles west). NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,200 mito the Gulf of AmericaJames → Missouri → Mississippi

A raindrop that lands in Cavour reaches the Gulf of America by way of the James, the Missouri and the Mississippi: about 2,200 river miles.

1,170 miles of the trip are on the Mississippi.