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

Weather in Arion, Iowa

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

Arion, IA
Sunday, May 17 at 4:54 AM
68
°
Overcast
Feels like
69°
Humidity
76%
Wind
5 mph
Sunrise
6:00 AM
Sunset
8:36 PM
Arion, IA
Hour by hour · 24h
63°
11p
62°
12a
60°
1a
59°
2a
59°
3a
58°
4a
55°
5a
53°
6a
53°
7a
61°
8a
67°
9a
73°
10a
78°
11a
81°
12p
84°
1p
86°
2p
87°
3p
87°
4p
85°
5p
85°
11%
6p
84°
10%
7p
79°
17%
8p
77°
23%
9p
70°
30%
10p
L 53°H 87°
Arion, IA
7-day forecast
  1. Today
    May 16
    Overcast
    26%
    80°55°
  2. Sunday
    May 17
    Thunderstorm
    78%
    79°63°
  3. Monday
    May 18
    Heavy Drizzle
    98%
    70°58°
  4. Tuesday
    May 19
    Light Drizzle
    98%
    59°46°
  5. Wednesday
    May 20
    Overcast
    63°41°
  6. Thursday
    May 21
    Overcast
    66°47°
  7. Friday
    May 22
    Light Rain
    20%
    60°55°
Arion, IA
Anemometer · 24h winds · from true
NESW
From · True
ESE
103° · veering 109°
Direction
ESE
103°
Sustained
5
mph
Gust
15
mph
Peak 24h
29
avg 11
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 11 · pk 29 @ 2:00a
−24h−18h−12h−6hnow
Light breeze veering 109° from the ese.
Arion, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
965.2
-1.0 mb in 3h · steady · 28.50 inHg
Now
965.2
mb
3h
-1.0
mb
12h
-2.5
mb
24h
-0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 964969
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Arion, IA
Air quality
54
AQI
Moderate
PM 2.5
3.2 μg/m³
PM 10
3.7 μg/m³
NO₂
2.9 μg/m³
Ozone
89.0 μg/m³
UV Index
0.0 Low
Arion, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:29 AM
Sunrise
6:00 AM
Daylight
14h 36m
Sunset
8:36 PM
Civil dusk
2:09 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Arion, IA
The moon
New Moon
0% illuminated
Moonrise
11:03 AM
Moonset
2:09 AM
In sign
♊︎ Gemini
Arion, 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 →

Arion at a glance

  • Today vs. normal: 68°F — typical for the season
  • Last frost: April 28 (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.

ZIP codes in Arion

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.