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Weather in Harpers Ferry, Iowa

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

Harpers Ferry, IA
Saturday, May 16 at 11:56 PM
81
°
Clear
Feels like
80°
Humidity
32%
Wind
2 mph
Sunrise
5:39 AM
Sunset
8:22 PM
Harpers Ferry, IA
Hour by hour · 24h
73°
6p
71°
7p
69°
8p
67°
9p
63°
33%
10p
60°
37%
11p
61°
14%
12a
58°
14%
1a
58°
13%
2a
57°
3a
56°
4a
55°
5a
55°
6a
57°
7a
62°
8a
65°
9a
69°
10a
73°
11a
76°
12p
79°
1p
82°
2p
83°
3p
85°
4p
85°
5p
L 55°H 85°
Harpers Ferry, IA
7-day forecast
  1. Today
    May 16
    Heavy Rain
    95%
    85°59°
  2. Sunday
    May 17
    Light Rain
    50%
    80°60°
  3. Monday
    May 18
    Showers
    85%
    79°66°
  4. Tuesday
    May 19
    Showers
    85%
    68°49°
  5. Wednesday
    May 20
    Overcast
    59°46°
  6. Thursday
    May 21
    Overcast
    62°39°
  7. Friday
    May 22
    Drizzle
    60°49°
Harpers Ferry, IA
Anemometer · 24h winds · from true
NESW
From · True
NW
326° · veering 103°
Direction
NW
326°
Sustained
2
mph
Gust
3
mph
Peak 24h
23
avg 4
Beaufort · 1 · LIGHT AIR
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 4 · pk 23 @ 12:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Harpers Ferry, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
986.7
0.0 mb in 3h · steady · 29.14 inHg
Now
986.7
mb
3h
0.0
mb
12h
-0.1
mb
24h
+2.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982988
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Harpers Ferry, IA
Air quality
53
AQI
Moderate
PM 2.5
5.2 μg/m³
PM 10
7.2 μg/m³
NO₂
1.9 μg/m³
Ozone
101.0 μg/m³
UV Index
0.9 Low
Harpers Ferry, IA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
10:08 AM
Sunrise
5:39 AM
Daylight
14h 43m
Sunset
8:22 PM
Civil dusk
1:56 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harpers Ferry, IA
The moon
New Moon
0% illuminated
Moonrise
9:59 AM
Moonset
12:36 AM
In sign
♉︎ Taurus
Harpers Ferry, 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 →

Harpers Ferry at a glance

  • Today vs. normal: 13°F above 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 16, 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 Harpers Ferry

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.