Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Buffalo Grove, Illinois

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

Buffalo Grove, IL
Sunday, May 17 at 2:40 AM
73
°
Overcast
Feels like
75°
Humidity
62%
Wind
4 mph
Sunrise
5:29 AM
Sunset
8:07 PM
Buffalo Grove, IL
Hour by hour · 24h
54°
9p
52°
10p
50°
11p
50°
12a
50°
1a
49°
2a
51°
18%
3a
52°
4a
52°
5a
53°
6a
58°
7a
61°
8a
61°
9a
62°
10a
65°
11a
66°
12p
69°
1p
71°
2p
73°
3p
75°
4p
75°
5p
75°
6p
74°
7p
70°
8p
L 49°H 75°
Buffalo Grove, IL
7-day forecast
  1. Today
    May 16
    Drizzle
    50%
    83°64°
  2. Sunday
    May 17
    Drizzle
    26%
    86°61°
  3. Monday
    May 18
    Heavy Rain
    56%
    80°66°
  4. Tuesday
    May 19
    Light Showers
    59%
    75°55°
  5. Wednesday
    May 20
    Overcast
    18%
    60°46°
  6. Thursday
    May 21
    Overcast
    61°46°
  7. Friday
    May 22
    Overcast
    62°50°
Buffalo Grove, IL
Anemometer · 24h winds · from true
NESW
From · True
SE
141° · backing 78°
Direction
SE
141°
Sustained
4
mph
Gust
11
mph
Peak 24h
34
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
avg 8 · pk 34 @ 7:00a
−24h−18h−12h−6hnow
Light breeze backing 78° from the se.
Buffalo Grove, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
986.3
-0.3 mb in 3h · steady · 29.13 inHg
Now
986.3
mb
3h
-0.3
mb
12h
-1.0
mb
24h
+3.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982987
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Buffalo Grove, IL
Air quality
78
AQI
Moderate
PM 2.5
7.3 μg/m³
PM 10
8.1 μg/m³
NO₂
13.4 μg/m³
Ozone
89.0 μg/m³
UV Index
0.0 Low
Buffalo Grove, 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 38m
Sunset
8:07 PM
Civil dusk
1:40 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Buffalo Grove, IL
The moon
New Moon
0% illuminated
Moonrise
10:33 AM
Moonset
1:38 AM
In sign
♊︎ Gemini
Buffalo Grove, 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 →

Buffalo Grove at a glance

  • Today vs. normal: 4°F above the seasonal normal for this latitude
  • 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).

ZIP codes in Buffalo Grove

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.