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

Weather in Crystal Lake, Iowa

Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →

Crystal Lake, IA
Sunday, May 17 at 5:53 AM
65
°
Overcast
Feels like
65°
Humidity
84%
Wind
8 mph
Sunrise
5:48 AM
Sunset
8:34 PM
Crystal Lake, IA
Hour by hour · 24h
64°
12a
63°
1a
61°
2a
59°
3a
57°
4a
56°
5a
53°
6a
55°
7a
62°
8a
67°
9a
72°
10a
77°
11a
80°
12p
84°
1p
87°
2p
89°
3p
88°
4p
87°
5p
86°
11%
6p
82°
26%
7p
72°
41%
8p
65°
69%
9p
65°
68%
10p
65°
41%
11p
L 53°H 89°
Crystal Lake, IA
7-day forecast
  1. Today
    May 17
    Thunderstorm
    54%
    79°60°
  2. Monday
    May 18
    Showers
    97%
    67°57°
  3. Tuesday
    May 19
    Light Rain
    97%
    57°43°
  4. Wednesday
    May 20
    Overcast
    59°39°
  5. Thursday
    May 21
    Rain
    59°47°
  6. Friday
    May 22
    Light Drizzle
    12%
    68°50°
  7. Saturday
    May 23
    Light Drizzle
    20%
    66°54°
Crystal Lake, IA
Anemometer · 24h winds · from true
NESW
From · True
E
101° · veering 138°
Direction
E
101°
Sustained
8
mph
Gust
17
mph
Peak 24h
20
avg 7
Beaufort · 3 · GENTLE 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 20 @ 2:00a
−24h−18h−12h−6hnow
Light breeze veering 138° from the e.
Crystal Lake, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
962.6
-0.3 mb in 3h · steady · 28.43 inHg
Now
962.6
mb
3h
-0.3
mb
12h
-2.4
mb
24h
+0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 962966
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Crystal Lake, IA
Air quality
45
AQI
Good
PM 2.5
5.3 μg/m³
PM 10
6.4 μg/m³
NO₂
5.0 μg/m³
Ozone
70.0 μg/m³
UV Index
0.0 Low
Crystal Lake, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:18 AM
Sunrise
5:48 AM
Daylight
14h 46m
Sunset
8:34 PM
Civil dusk
2:07 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Crystal Lake, IA
The moon
New Moon
0% illuminated
Moonrise
10:52 AM
Moonset
2:08 AM
In sign
♊︎ Gemini
Crystal Lake, IA
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Crystal Lake at a glance

  • Today vs. normal: 3°F below the seasonal normal for this latitude
  • Last frost: May 5 (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 Crystal Lake

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.