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

Weather in Athelstan, Iowa

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Athelstan, IA
Sunday, May 17 at 1:03 AM
72
°
Light Showers
Feels like
69°
Humidity
86%
Wind
22 mph
Sunrise
6:00 AM
Sunset
8:29 PM
Athelstan, IA
Hour by hour · 24h
71°
8p
70°
9p
70°
10p
68°
11p
66°
12a
65°
1a
63°
2a
62°
3a
61°
4a
60°
5a
57°
6a
59°
7a
64°
8a
68°
9a
71°
10a
77°
11a
79°
12p
82°
1p
85°
2p
85°
3p
86°
4p
89°
5p
88°
6p
86°
7p
L 57°H 89°
Athelstan, IA
7-day forecast
  1. Today
    May 16
    Thunderstorm
    81%
    86°64°
  2. Sunday
    May 17
    Thunderstorm
    83%
    81°63°
  3. Monday
    May 18
    Thunderstorm
    85%
    81°62°
  4. Tuesday
    May 19
    Showers
    85%
    62°48°
  5. Wednesday
    May 20
    Overcast
    61°42°
  6. Thursday
    May 21
    Overcast
    64°47°
  7. Friday
    May 22
    Overcast
    11%
    65°55°
Athelstan, IA
Anemometer · 24h winds · from true
NESW
From · True
ENE
062° · backing 146°
Direction
ENE
062°
Sustained
22
mph
Gust
34
mph
Peak 24h
37
avg 11
Beaufort · 5 · FRESH 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 37 @ 9:00p
−24h−18h−12h−6hnow
Sustained 22 mph with gusts pulsing to 34 — flags snap, branches bend.
Athelstan, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
965.4
-1.0 mb in 3h · steady · 28.51 inHg
Now
965.4
mb
3h
-1.0
mb
12h
-2.5
mb
24h
-0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 965969
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Athelstan, IA
Air quality
50
AQI
Good
PM 2.5
4.8 μg/m³
PM 10
5.6 μg/m³
NO₂
3.0 μg/m³
Ozone
82.0 μg/m³
UV Index
0.0 Low
Athelstan, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:30 AM
Sunrise
6:00 AM
Daylight
14h 29m
Sunset
8:29 PM
Civil dusk
2:01 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Athelstan, IA
The moon
New Moon
0% illuminated
Moonrise
11:05 AM
Moonset
2:01 AM
In sign
♉︎ Taurus
Athelstan, IA
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Athelstan at a glance

  • Today vs. normal: 72°F — typical for the season
  • Last frost: April 19 (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 Athelstan

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.