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

Weather in Harvard, Illinois

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

Harvard, IL
Sunday, May 17 at 3:42 AM
69
°
Overcast
Feels like
70°
Humidity
70%
Wind
6 mph
Sunrise
5:31 AM
Sunset
8:10 PM
Harvard, IL
Hour by hour · 24h
55°
10p
56°
11p
54°
12a
53°
1a
53°
22%
2a
52°
16%
3a
53°
4a
52°
5a
54°
6a
57°
7a
58°
8a
61°
9a
63°
10a
66°
11a
69°
12p
71°
1p
73°
2p
75°
3p
77°
4p
77°
5p
76°
6p
74°
7p
71°
8p
69°
9p
L 52°H 77°
Harvard, IL
7-day forecast
  1. Today
    May 16
    Rain
    53%
    82°59°
  2. Sunday
    May 17
    Rain
    34%
    84°64°
  3. Monday
    May 18
    Rain
    63%
    77°64°
  4. Tuesday
    May 19
    Showers
    56%
    72°52°
  5. Wednesday
    May 20
    Overcast
    —
    59°41°
  6. Thursday
    May 21
    Overcast
    —
    60°39°
  7. Friday
    May 22
    Overcast
    12%
    64°46°
Harvard, IL
Next 24 hours · Cool now
45°65°85°12a6a12p6pnow 55°high 77°low 52°PRECIP %
Harvard, IL
Anemometer · 24h winds · from true
NESW
From · True
SSE
151° · backing 40°
Direction
SSE
151°
Sustained
6
mph
Gust
9
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
avg 7 · pk 18 @ 2:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Harvard, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
978.0
-0.3 mb in 3h · steady · 28.88 inHg
Now
978.0
mb
3h
-0.3
mb
12h
-0.4
mb
24h
+3.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 975–980
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Harvard, IL
Air quality
61
AQI
Moderate
PM 2.5
4.7 μg/m³
PM 10
5.8 μg/m³
NO₂
10.3 μg/m³
Ozone
83.0 μg/m³
UV Index
0.0 Low
Harvard, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:00 AM
Sunrise
5:31 AM
Daylight
14h 39m
Sunset
8:10 PM
Civil dusk
1:43 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harvard, IL
The moon
New Moon
0% illuminated
Moonrise
10:34 AM
Moonset
1:42 AM
In sign
♊︎ Gemini
Harvard, 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 →

Harvard at a glance

  • Today vs. normal: 69°F — typical for the season
  • Last frost: May 1 (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).

All cities in Illinois →

ZIP codes in Harvard

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.