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

Weather in Walnut, Iowa

Roses Bloom Along the Shelter Rows. Day 58 of spring. Read this microseason across nine climate regions →

Walnut, IA
Saturday, May 16 at 11:53 PM
68
°
Showers
Feels like
65°
Humidity
80%
Wind
19 mph
Sunrise
6:00 AM
Sunset
8:34 PM
Walnut, IA
Hour by hour · 24h
79°
6p
78°
7p
75°
8p
72°
9p
71°
10p
69°
11p
66°
12a
64°
1a
62°
2a
61°
3a
59°
4a
57°
5a
56°
6a
57°
7a
63°
8a
70°
9a
75°
10a
79°
11a
82°
12p
85°
1p
87°
2p
89°
3p
88°
4p
90°
19%
5p
L 56°H 90°
Walnut, IA
7-day forecast
  1. Today
    May 16
    Thunderstorm
    34%
    81°59°
  2. Sunday
    May 17
    Thunderstorm
    67%
    79°60°
  3. Monday
    May 18
    Showers
    97%
    82°59°
  4. Tuesday
    May 19
    Light Drizzle
    97%
    58°47°
  5. Wednesday
    May 20
    Overcast
    60°41°
  6. Thursday
    May 21
    Light Drizzle
    64°46°
  7. Friday
    May 22
    Light Rain
    14%
    67°54°
Walnut, IA
Anemometer · 24h winds · from true
NESW
From · True
SE
125° · backing 166°
Direction
SE
125°
Sustained
19
mph
Gust
28
mph
Peak 24h
28
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 28 @ 12:00a
−24h−18h−12h−6hnow
Sustained 19 mph with gusts pulsing to 28 — flags snap, branches bend.
Walnut, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
959.8
+0.9 mb in 3h · rising rapidly · 28.34 inHg
Now
959.8
mb
3h
+0.9
mb
12h
-2.2
mb
24h
+1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 958962
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Walnut, IA
Air quality
59
AQI
Moderate
PM 2.5
3.6 μg/m³
PM 10
4.6 μg/m³
NO₂
1.4 μg/m³
Ozone
107.0 μg/m³
UV Index
0.8 Low
Walnut, IA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
10:30 AM
Sunrise
6:00 AM
Daylight
14h 34m
Sunset
8:34 PM
Civil dusk
2:06 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Walnut, IA
The moon
New Moon
0% illuminated
Moonrise
10:23 AM
Moonset
12:48 AM
In sign
♉︎ Taurus
Walnut, IA
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

weather
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Walnut at a glance

  • Today vs. normal: 68°F — typical for the season
  • Last frost: April 25 (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 16, 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 Walnut

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.