Weather in Arlington Heights, Illinois
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Arlington Heights, IL
Sunday, May 17 at 5:13 AM
71
°
Overcast
Feels like
69°
Humidity
64%
Wind
9 mph
Sunrise
5:28 AM
Sunset
8:07 PM
Arlington Heights, IL
Hour by hour · 24h
53°
12a
52°
1a
52°
2a
52°
19%
3a
52°
4a
54°
5a
55°
6a
59°
7a
61°
8a
61°
9a
62°
10a
66°
11a
66°
12p
69°
1p
70°
2p
73°
3p
75°
4p
75°
5p
75°
6p
74°
7p
70°
8p
69°
9p
67°
10p
67°
11p
Arlington Heights, IL
7-day forecast
- TodayMay 17Rain36%87°64°
- MondayMay 18Rain61%80°69°
- TuesdayMay 19Light Showers53%75°55°
- WednesdayMay 20Overcast10%60°46°
- ThursdayMay 21Overcast—61°46°
- FridayMay 22Overcast11%62°50°
- SaturdayMay 23Overcast11%69°56°
Arlington Heights, IL
Next 24 hours · Cool now
Arlington Heights, IL
Anemometer · 24h winds · from true
From · True
SSW
204° · backing 46°
Direction
SSW
204°
Sustained
9
mph
Gust
25
mph
Peak 24h
30
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
−24h−18h−12h−6hnow
Arlington Heights, IL
Air quality
48
AQI
Good
- PM 2.5
- 6.9 μg/m³
- PM 10
- 7.9 μg/m³
- NO₂
- 15.1 μg/m³
- Ozone
- 77.0 μg/m³
- UV Index
- 0.0 Low
Arlington 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
5:28 AM
Daylight
14h 39m
Sunset
8:07 PM
Civil dusk
1:39 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Arlington Heights, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:33 AM
- Moonset
- 1:38 AM
- In sign
- ♊︎ Gemini
Arlington Heights, IL
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Arlington Heights at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 29 (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).