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

Weather in Grant Park, Illinois

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

Grant Park, IL
Sunday, May 17 at 5:05 AM
66
°
Overcast
Feels like
65°
Humidity
80%
Wind
10 mph
Sunrise
5:29 AM
Sunset
8:04 PM
Grant Park, IL
Hour by hour · 24h
53°
12a
52°
1a
50°
2a
51°
3a
52°
15%
4a
52°
5a
53°
6a
56°
16%
7a
55°
19%
8a
57°
9a
58°
10a
59°
11a
59°
12p
62°
1p
66°
2p
70°
3p
72°
4p
72°
5p
72°
6p
71°
7p
68°
8p
66°
9p
64°
10p
66°
11p
L 50°H 72°
Grant Park, IL
7-day forecast
  1. Today
    May 17
    Overcast
    86°62°
  2. Monday
    May 18
    Heavy Drizzle
    86%
    83°68°
  3. Tuesday
    May 19
    Light Showers
    75%
    80°58°
  4. Wednesday
    May 20
    Overcast
    45%
    60°44°
  5. Thursday
    May 21
    Overcast
    62°44°
  6. Friday
    May 22
    Light Drizzle
    13%
    56°49°
  7. Saturday
    May 23
    Overcast
    15%
    69°55°
Grant Park, IL
Anemometer · 24h winds · from true
NESW
From · True
S
171° · backing 21°
Direction
S
171°
Sustained
10
mph
Gust
18
mph
Peak 24h
23
avg 11
Beaufort · 3 · GENTLE 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 23 @ 2:00p
−24h−18h−12h−6hnow
Light breeze backing 21° from the s.
Grant Park, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
987.3
-0.3 mb in 3h · steady · 29.15 inHg
Now
987.3
mb
3h
-0.3
mb
12h
+0.3
mb
24h
+2.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 983988
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Grant Park, IL
Air quality
41
AQI
Good
PM 2.5
6.7 μg/m³
PM 10
8.0 μg/m³
NO₂
5.6 μg/m³
Ozone
75.0 μg/m³
UV Index
0.0 Low
Grant Park, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:01 AM
Sunrise
5:29 AM
Daylight
14h 35m
Sunset
8:04 PM
Civil dusk
1:35 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Grant Park, IL
The moon
New Moon
0% illuminated
Moonrise
10:35 AM
Moonset
1:33 AM
In sign
♊︎ Gemini
Grant Park, 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 →

Grant Park at a glance

  • Today vs. normal: 4°F below the seasonal normal for this latitude
  • Last frost: April 23 (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 Grant Park

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.