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

Weather in Merrill, Iowa

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

Merrill, IA
Sunday, May 17 at 1:02 AM
74
°
Overcast
Feels like
67°
Humidity
23%
Wind
9 mph
Sunrise
6:01 AM
Sunset
8:41 PM
Merrill, IA
Hour by hour · 24h
73°
8p
70°
9p
67°
10p
64°
11p
62°
12a
60°
1a
59°
2a
58°
3a
57°
4a
55°
5a
53°
6a
53°
7a
60°
8a
66°
9a
72°
10a
78°
11a
82°
12p
85°
1p
87°
2p
90°
3p
89°
4p
90°
5p
91°
6p
93°
10%
7p
L 53°H 93°
Merrill, IA
7-day forecast
  1. Today
    May 16
    Overcast
    82°49°
  2. Sunday
    May 17
    Thunderstorm
    60%
    76°60°
  3. Monday
    May 18
    Light Rain
    88%
    62°52°
  4. Tuesday
    May 19
    Light Drizzle
    88%
    57°44°
  5. Wednesday
    May 20
    Overcast
    64°40°
  6. Thursday
    May 21
    Light Drizzle
    67°47°
  7. Friday
    May 22
    Heavy Drizzle
    16%
    61°54°
Merrill, IA
Anemometer · 24h winds · from true
NESW
From · True
NE
054° · veering 77°
Direction
NE
054°
Sustained
9
mph
Gust
18
mph
Peak 24h
24
avg 9
Beaufort · 3 · GENTLE 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 9 · pk 24 @ 12:00a
−24h−18h−12h−6hnow
Light breeze veering 77° from the ne.
Merrill, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
965.2
+1.6 mb in 3h · steady · 28.50 inHg
Now
965.2
mb
3h
+1.6
mb
12h
-3.0
mb
24h
+2.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 962968
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Merrill, IA
Air quality
53
AQI
Moderate
PM 2.5
3.2 μg/m³
PM 10
4.0 μg/m³
NO₂
2.2 μg/m³
Ozone
101.0 μg/m³
UV Index
0.1 Low
Merrill, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:30 AM
Sunrise
6:01 AM
Daylight
14h 40m
Sunset
8:41 PM
Civil dusk
2:15 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Merrill, IA
The moon
New Moon
0% illuminated
Moonrise
11:03 AM
Moonset
2:16 AM
In sign
♉︎ Taurus
Merrill, 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 →

Merrill at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: May 2 (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 Merrill

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.