Weather in Grand Detour, Illinois
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Grand Detour, IL
Sunday, May 17 at 1:46 AM
73
°
Overcast
Feels like
76°
Humidity
80%
Wind
6 mph
Sunrise
5:36 AM
Sunset
8:12 PM
Grand Detour, IL
Hour by hour · 24h
65°
8p
61°
9p
59°
10p
59°
11p
57°
10%
12a
55°
29%
1a
56°
12%
2a
54°
3a
55°
13%
4a
55°
5a
55°
6a
56°
7a
58°
8a
60°
9a
64°
10a
67°
11a
71°
12p
74°
1p
77°
2p
79°
3p
80°
4p
80°
5p
79°
6p
78°
7p
Grand Detour, IL
7-day forecast
- TodayMay 16Heavy Rain70%83°62°
- SundayMay 17Light Drizzle44%86°64°
- MondayMay 18Thunderstorm83%84°69°
- TuesdayMay 19Showers64%73°52°
- WednesdayMay 20Overcast—61°45°
- ThursdayMay 21Overcast—66°42°
- FridayMay 22Overcast—63°50°
Grand Detour, IL
Next 24 hours · Cool now
Grand Detour, IL
Anemometer · 24h winds · from true
From · True
S
175° · veering 136°
Direction
S
175°
Sustained
6
mph
Gust
11
mph
Peak 24h
20
avg 6
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
Grand Detour, IL
Air quality
58
AQI
Moderate
- PM 2.5
- 3.0 μg/m³
- PM 10
- 3.9 μg/m³
- NO₂
- 6.0 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Grand Detour, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:05 AM
Sunrise
5:36 AM
Daylight
14h 36m
Sunset
8:12 PM
Civil dusk
1:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Grand Detour, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:40 AM
- Moonset
- 1:44 AM
- In sign
- ♉︎ Taurus
Grand Detour, IL
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Grand Detour at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 27 (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.