Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in South Holland, Illinois

Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →

South Holland, IL
Sunday, May 17 at 4:07 AM
68
°
Overcast
Feels like
69°
Humidity
77%
Wind
5 mph
Sunrise
5:29 AM
Sunset
8:04 PM
South Holland, IL
Hour by hour · 24h
55°
11p
54°
12a
54°
1a
52°
2a
52°
11%
3a
52°
14%
4a
53°
5a
54°
6a
57°
14%
7a
60°
11%
8a
60°
9a
59°
10a
60°
11a
61°
12p
66°
1p
69°
2p
71°
3p
73°
4p
75°
5p
74°
6p
71°
7p
69°
8p
67°
9p
66°
10p
L 52°H 75°
South Holland, IL
7-day forecast
  1. Today
    May 16
    Rain
    45%
    83°63°
  2. Sunday
    May 17
    Overcast
    12%
    87°62°
  3. Monday
    May 18
    Rain
    66%
    83°69°
  4. Tuesday
    May 19
    Light Showers
    69%
    78°59°
  5. Wednesday
    May 20
    Overcast
    28%
    59°48°
  6. Thursday
    May 21
    Overcast
    64°48°
  7. Friday
    May 22
    Overcast
    13%
    58°53°
South Holland, IL
Anemometer · 24h winds · from true
NESW
From · True
SSW
198° · backing 23°
Direction
SSW
198°
Sustained
5
mph
Gust
13
mph
Peak 24h
27
avg 7
Beaufort · 2 · LIGHT 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 7 · pk 27 @ 8:00a
−24h−18h−12h−6hnow
Light breeze backing 23° from the ssw.
South Holland, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
990.9
-0.2 mb in 3h · falling · 29.26 inHg
Now
990.9
mb
3h
-0.2
mb
12h
+1.5
mb
24h
+3.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 985991
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
South Holland, IL
Air quality
49
AQI
Good
PM 2.5
6.9 μg/m³
PM 10
8.1 μg/m³
NO₂
11.1 μg/m³
Ozone
82.0 μg/m³
UV Index
0.0 Low
South Holland, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:59 AM
Sunrise
5:29 AM
Daylight
14h 35m
Sunset
8:04 PM
Civil dusk
1:36 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
South Holland, IL
The moon
New Moon
0% illuminated
Moonrise
10:33 AM
Moonset
1:35 AM
In sign
♊︎ Gemini
South Holland, IL
Microseason · 28 of 72
May 16–20

Roses open along the stoops

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

South Holland at a glance

  • Today vs. normal: 68°F — typical for the season
  • Last frost: April 26 (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

Warm-season window is open

As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

ZIP codes in South Holland

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.