Weather in McHenry, Illinois
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
McHenry, IL
Sunday, May 17 at 3:49 AM
68
°
Overcast
Feels like
70°
Humidity
83%
Wind
5 mph
Sunrise
5:30 AM
Sunset
8:08 PM
McHenry, IL
Hour by hour · 24h
54°
10p
52°
11p
52°
12a
51°
1a
51°
2a
51°
20%
3a
52°
4a
52°
5a
52°
6a
56°
7a
59°
8a
59°
9a
61°
10a
65°
11a
67°
12p
70°
1p
72°
2p
73°
3p
75°
4p
75°
5p
76°
6p
73°
7p
69°
8p
67°
9p
McHenry, IL
7-day forecast
- TodayMay 16Heavy Rain55%82°60°
- SundayMay 17Heavy Rain33%85°61°
- MondayMay 18Rain59%78°66°
- TuesdayMay 19Showers44%73°53°
- WednesdayMay 20Overcast—58°41°
- ThursdayMay 21Overcast—60°40°
- FridayMay 22Overcast12%63°46°
McHenry, IL
Next 24 hours · Cool now
McHenry, IL
Anemometer · 24h winds · from true
From · True
S
178° · backing 59°
Direction
S
178°
Sustained
5
mph
Gust
15
mph
Peak 24h
18
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
−24h−18h−12h−6hnow
McHenry, IL
Air quality
52
AQI
Moderate
- PM 2.5
- 8.4 μg/m³
- PM 10
- 9.3 μg/m³
- NO₂
- 20.2 μg/m³
- Ozone
- 67.0 μg/m³
- UV Index
- 0.0 Low
McHenry, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:59 AM
Sunrise
5:30 AM
Daylight
14h 38m
Sunset
8:08 PM
Civil dusk
1:41 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
McHenry, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:33 AM
- Moonset
- 1:41 AM
- In sign
- ♊︎ Gemini
McHenry, IL
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
McHenry at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: April 30 (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).