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

Weather in Plymouth, Iowa

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

Plymouth, IA
Sunday, May 17 at 1:06 AM
70
°
Clear
Feels like
66°
Humidity
33%
Wind
5 mph
Sunrise
5:47 AM
Sunset
8:30 PM
Plymouth, IA
Hour by hour · 24h
69°
42%
8p
64°
16%
9p
63°
12%
10p
62°
11p
60°
12a
61°
1a
60°
2a
58°
3a
57°
4a
55°
5a
54°
6a
56°
7a
61°
8a
65°
9a
71°
10a
75°
11a
80°
12p
83°
1p
86°
2p
87°
3p
87°
4p
88°
5p
89°
6p
87°
10%
7p
L 54°H 89°
Plymouth, IA
7-day forecast
  1. Today
    May 16
    Foggy
    31%
    77°55°
  2. Sunday
    May 17
    Light Rain
    29%
    73°62°
  3. Monday
    May 18
    Showers
    97%
    71°62°
  4. Tuesday
    May 19
    Rain
    97%
    63°46°
  5. Wednesday
    May 20
    Overcast
    59°45°
  6. Thursday
    May 21
    Light Drizzle
    63°43°
  7. Friday
    May 22
    Drizzle
    10%
    54°50°
Plymouth, IA
Anemometer · 24h winds · from true
NESW
From · True
NE
045° · veering 174°
Direction
NE
045°
Sustained
5
mph
Gust
9
mph
Peak 24h
24
avg 5
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 5 · pk 24 @ 11:00p
−24h−18h−12h−6hnow
Light breeze veering 174° from the ne.
Plymouth, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
968.9
-0.3 mb in 3h · steady · 28.61 inHg
Now
968.9
mb
3h
-0.3
mb
12h
-2.0
mb
24h
+3.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 965971
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Plymouth, IA
Air quality
62
AQI
Moderate
PM 2.5
5.5 μg/m³
PM 10
7.3 μg/m³
NO₂
3.2 μg/m³
Ozone
95.0 μg/m³
UV Index
0.1 Low
Plymouth, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:16 AM
Sunrise
5:47 AM
Daylight
14h 43m
Sunset
8:30 PM
Civil dusk
2:04 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Plymouth, IA
The moon
New Moon
0% illuminated
Moonrise
10:49 AM
Moonset
2:05 AM
In sign
♉︎ Taurus
Plymouth, 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 →

Plymouth at a glance

  • Today vs. normal: 70°F — typical for the season
  • 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 Plymouth

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.