Weather in Lemont, Illinois
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Lemont, IL
Sunday, May 17 at 5:05 AM
67
°
Clear
Feels like
67°
Humidity
67%
Wind
5 mph
Sunrise
5:30 AM
Sunset
8:06 PM
Lemont, IL
Hour by hour · 24h
56°
12a
55°
1a
55°
2a
54°
19%
3a
53°
4a
55°
5a
56°
6a
58°
11%
7a
60°
8a
60°
9a
61°
10a
60°
11a
63°
12p
67°
1p
69°
2p
71°
3p
73°
4p
74°
5p
73°
6p
71°
7p
69°
8p
67°
9p
66°
10p
66°
11p
Lemont, IL
7-day forecast
- TodayMay 17Overcast12%86°62°
- MondayMay 18Heavy Rain65%79°67°
- TuesdayMay 19Light Showers70%76°55°
- WednesdayMay 20Overcast22%63°46°
- ThursdayMay 21Overcast—65°46°
- FridayMay 22Overcast11%58°51°
- SaturdayMay 23Overcast11%68°55°
Lemont, IL
Next 24 hours · Cool now
Lemont, IL
Anemometer · 24h winds · from true
From · True
S
185° · backing 24°
Direction
S
185°
Sustained
5
mph
Gust
13
mph
Peak 24h
22
avg 8
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
Lemont, IL
Air quality
45
AQI
Good
- PM 2.5
- 7.8 μg/m³
- PM 10
- 9.0 μg/m³
- NO₂
- 10.2 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Lemont, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:01 AM
Sunrise
5:30 AM
Daylight
14h 36m
Sunset
8:06 PM
Civil dusk
1:38 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Lemont, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:35 AM
- Moonset
- 1:37 AM
- In sign
- ♊︎ Gemini
Lemont, IL
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Lemont at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: April 26 (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.