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Weather in Harwood Heights, Illinois

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

Harwood Heights, IL
Sunday, May 17 at 4:52 AM
71
°
Overcast
Feels like
70°
Humidity
61%
Wind
8 mph
Sunrise
5:29 AM
Sunset
8:05 PM
Harwood Heights, IL
Hour by hour · 24h
52°
11p
53°
12a
52°
1a
51°
2a
53°
18%
3a
53°
12%
4a
53°
5a
54°
6a
56°
7a
61°
8a
61°
9a
60°
10a
62°
11a
64°
12p
68°
1p
70°
2p
72°
3p
74°
4p
75°
5p
74°
6p
73°
7p
70°
8p
68°
9p
67°
10p
L 51°H 75°
Harwood Heights, IL
7-day forecast
  1. Today
    May 16
    Heavy Drizzle
    53%
    84°65°
  2. Sunday
    May 17
    Overcast
    30%
    87°65°
  3. Monday
    May 18
    Showers
    59%
    80°71°
  4. Tuesday
    May 19
    Drizzle
    63%
    76°57°
  5. Wednesday
    May 20
    Overcast
    16%
    57°46°
  6. Thursday
    May 21
    Overcast
    61°47°
  7. Friday
    May 22
    Overcast
    11%
    58°51°
Harwood Heights, IL
Anemometer · 24h winds · from true
NESW
From · True
SSW
209° · backing 8°
Direction
SSW
209°
Sustained
8
mph
Gust
18
mph
Peak 24h
28
avg 8
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 8 · pk 28 @ 7:00a
−24h−18h−12h−6hnow
Light breeze backing 8° from the ssw.
Harwood Heights, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
988.6
+1.2 mb in 3h · rising · 29.19 inHg
Now
988.6
mb
3h
+1.2
mb
12h
+1.4
mb
24h
+4.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 983989
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Harwood Heights, IL
Air quality
56
AQI
Moderate
PM 2.5
5.9 μg/m³
PM 10
7.0 μg/m³
NO₂
15.5 μg/m³
Ozone
78.0 μg/m³
UV Index
0.0 Low
Harwood Heights, 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 36m
Sunset
8:05 PM
Civil dusk
1:38 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harwood Heights, IL
The moon
New Moon
0% illuminated
Moonrise
10:33 AM
Moonset
1:37 AM
In sign
♊︎ Gemini
Harwood Heights, 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 →

Harwood Heights at a glance

  • Today vs. normal: 71°F — typical for the season
  • Last frost: April 28 (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 Harwood Heights

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.