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Weather in South Sioux City, Nebraska

Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →

South Sioux City, NE
Sunday, May 17 at 3:44 AM
73
°
Partly Cloudy
Feels like
63°
Humidity
31%
Wind
17 mph
Sunrise
6:02 AM
Sunset
8:41 PM
South Sioux City, NE
Hour by hour · 24h
71°
10p
68°
11p
66°
12a
64°
1a
62°
2a
61°
3a
59°
4a
56°
5a
54°
6a
55°
7a
61°
8a
66°
9a
72°
10a
79°
11a
83°
12p
86°
1p
89°
2p
90°
3p
91°
4p
93°
5p
93°
6p
95°
7p
87°
13%
8p
81°
9p
L 54°H 95°
South Sioux City, NE
7-day forecast
  1. Today
    May 16
    Overcast
    14%
    83°52°
  2. Sunday
    May 17
    Thunderstorm
    51%
    82°62°
  3. Monday
    May 18
    Heavy Rain
    87%
    63°53°
  4. Tuesday
    May 19
    Drizzle
    87%
    59°43°
  5. Wednesday
    May 20
    Overcast
    —
    65°40°
  6. Thursday
    May 21
    Light Drizzle
    —
    66°47°
  7. Friday
    May 22
    Heavy Drizzle
    16%
    63°55°
South Sioux City, NE
Next 24 hours · Mild now
HOT 90°45°75°105°12a6a12p6pnow 71°high 95°low 54°PRECIP %
South Sioux City, NE
Anemometer · 24h winds · from true
NESW
From · True
E
085° · veering 136°
Direction
E
085°
Sustained
17
mph
Gust
27
mph
Peak 24h
33
avg 11
Beaufort · 4 · MOD BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 11 · pk 33 @ 2:00a
−24h−18h−12h−6hnow
Sustained 17 mph with gusts pulsing to 27 — flags snap, branches bend.
South Sioux City, NE
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
966.1
-1.0 mb in 3h · rising · 28.53 inHg
Now
966.1
mb
3h
-1.0
mb
12h
-3.9
mb
24h
-1.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 966–971
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
South Sioux City, NE
Air quality
52
AQI
Moderate
PM 2.5
3.5 μg/m³
PM 10
4.1 μg/m³
NO₂
2.8 μg/m³
Ozone
99.0 μg/m³
UV Index
0.0 Low
South Sioux City, NE
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:31 AM
Sunrise
6:02 AM
Daylight
14h 39m
Sunset
8:41 PM
Civil dusk
2:14 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
South Sioux City, NE
The moon
New Moon
0% illuminated
Moonrise
11:05 AM
Moonset
2:15 AM
In sign
♊︎ Gemini
South Sioux City, NE
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

South Sioux City at a glance

  • Today vs. normal: 4°F above the seasonal normal for this latitude
  • Last frost: May 1 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

All cities in Nebraska →

ZIP codes in South Sioux City

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.