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

Shell Rock, Iowa Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Shell Rock weather forecast — hour by hour, 7-day outlook, NOAA radar

Shell Rock, IA
Saturday, July 4 at 3:15 PM
84
°
Clear
Feels like
90°
Humidity
59%
Wind
3 mph
Sunrise
12:38 AM
Sunset
3:51 PM
Shell Rock, IA
Hour by hour · 24h
24-Hour ForecastShell Rock, IA: 24-hour forecast. Temperatures range from 68 to 84 degrees Fahrenheit.
L 68°H 84°
Shell Rock, IA
7-day forecast
  1. Today
    Jul 4
    Drizzle
    39%
    0.02″
    84°69°
  2. Sunday
    Jul 5
    Heavy Drizzle
    19%
    0.07″
    81°68°-3°
  3. Monday
    Jul 6
    Overcast
    81°65°
  4. Tuesday
    Jul 7
    Overcast
    82°63°+1°
  5. Wednesday
    Jul 8
    T-storm w/ Hail
    41%
    0.01″
    82°66°
  6. Thursday
    Jul 9
    Light Drizzle
    44%
    79°63°-3°
  7. Friday
    Jul 10
    Light Drizzle
    14%
    80°63°+1°
Shell Rock, IA
Anemometer · 24h winds · from true
NESW
From · True
W
274° · backing 80°
Direction
W
274°
Sustained
3
mph
Gust
5
mph
Peak 24h
14
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 14 @ 5:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 185SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Shell Rock, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
983.1
-0.9 mb in 3h · falling · 29.03 inHg
Now
983.1
mb
3h
-0.9
mb
12h
+0.7
mb
24h
+0.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 981984
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW983.9981.0983.0
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Shell Rock, IA
Air quality
42
AQI
Good
+4 in 6h

AQI 42 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.75 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
8.9μg/m³
PM 10Good
12μg/m³
NO₂Good
1μg/m³
OzoneModerate
94μg/m³
UV IndexModerate
4.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 44 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.

Present
AQI 44
UV peak
3.9 at earlier today
Sky at peak
partly cloudy
Projected peak
AQI 44

PM × Wind × Precip

PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.75 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.75
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Shell Rock, IA
Sky cover · visibility · 24h
Cloud cover
3%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
64.0mi
UNLIMITED
65 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:15 UTC · Shell Rock, IA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:15 UTC · Shell Rock, IA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Shell Rock, IA
Satellite · infrared · animated
Shell Rock, IA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Shell Rock, IA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:04 AM
Sunrise
12:38 AM
Daylight
15h 13m
Sunset
3:51 PM
Civil dusk
9:27 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Shell Rock, IA
The moon
Waning Gibbous
79% illuminated
Moonrise
11:09 PM
Moonset
10:13 AM
In sign
♓︎ Pisces
Shell Rock, IA
Microseason
Jul 1–5

Cicadas claim the afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Shell Rock at a glance

  • Today vs. normal: 15°F above the seasonal normal for this latitude
  • Last frost: May 2 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 50670

16-Day Forecast — Shell Rock

  1. Sat84°69°39%
  2. Sun81°67°19%
  3. Mon81°65°2%
  4. Tue82°63°3%
  5. Wed82°66°41%
  6. Thu79°63°44%
  7. Fri80°63°14%
  8. Sat76°59°8%
  9. Sun78°56°13%
  10. Mon79°57°8%
  11. Tue80°61°7%
  12. Wed78°59°23%
  13. Thu83°64°26%
  14. Fri82°64°25%
  15. Sat73°60°24%
  16. Sun76°59°26%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Shell Rock

SPC includes Shell Rock in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3NONENo severe risk

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Shell Rock

  • 50670

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.