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

Alta, Iowa Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

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

Alta, IA
Sunday, July 5 at 1:19 AM
69
°
Mostly Clear
Feels like
71°
Humidity
94%
Wind
10 mph
Sunrise
12:49 AM
Sunset
4:02 PM
Alta, IA
Hour by hour · 24h
24-Hour ForecastAlta, IA: 24-hour forecast. Temperatures range from 65 to 87 degrees Fahrenheit.
L 65°H 87°
Alta, IA
7-day forecast
  1. Today
    Jul 5
    Overcast
    15%
    87°65°
  2. Monday
    Jul 6
    Overcast
    89°67°+2°
  3. Tuesday
    Jul 7
    Heavy Drizzle
    88°68°-1°
  4. Wednesday
    Jul 8
    Drizzle
    33%
    87°68°-1°
  5. Thursday
    Jul 9
    Overcast
    26%
    79°62°-8°
  6. Friday
    Jul 10
    Overcast
    82°63°+3°
  7. Saturday
    Jul 11
    Drizzle
    0.11″
    88°66°+6°
Alta, IA
Anemometer · 24h winds · from true
NESW
From · True
NNE
026° · veering 47°
Direction
NNE
026°
Sustained
10
mph
Gust
18
mph
Peak 24h
18
avg 5
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 5 · pk 18
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 246SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 47° from the nne.
Alta, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
961.6
-0.3 mb in 3h · steady · 28.40 inHg
Now
961.6
mb
3h
-0.3
mb
12h
-1.6
mb
24h
+0.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 960964
955960965970-21h-18h-15h-12h-9h-6h-3h-24hNOW963.7960.1961.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Alta, IA
Air quality
39
AQI
Good
-6 in 6h

AQI 39 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 5.0 µg/m³, PM10 at 5.9 µg/m³ — typical background levels with no transport signature.

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

PM 2.5DRIVERGood
5.0μg/m³
PM 10Good
6μg/m³
NO₂Good
9μg/m³
OzoneGood
54μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 5.0 µg/m³, PM10 at 5.9 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.85
Wind
breezy
Recent rain
0h in last 6h
Pattern
background
Alta, IA
Sky cover · visibility · 24h
Cloud cover
38%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
24.9mi
UNLIMITED
59 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
06:19 UTC · Alta, 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
06:19 UTC · Alta, IA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Alta, IA
Satellite · infrared · animated
Alta, IA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Alta, IA
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:15 AM
Sunrise
12:49 AM
Daylight
15h 13m
Sunset
4:02 PM
Civil dusk
9:38 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Alta, IA
The moon
Waning Gibbous
75% illuminated
Moonrise
11:42 PM
Moonset
11:33 AM
In sign
♓︎ Pisces
Alta, IA
Microseason
Jul 1–5

Cicadas claim the afternoon

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Alta at a glance

  • Today vs. normal: 69°F — typical for the season
  • 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: 51002

15-Day Forecast — Alta

  1. Sun87°65°15%
  2. Mon89°67°1%
  3. Tue88°68°8%
  4. Wed87°68°33%
  5. Thu79°62°26%
  6. Fri82°63°9%
  7. Sat88°66°8%
  8. Sun87°65°6%
  9. Mon91°67°3%
  10. Tue92°70°4%
  11. Wed90°64°7%
  12. Thu92°66°10%
  13. Fri89°67°14%
  14. Sat92°66°24%
  15. Sun98°73°11%

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

Right now in the garden

Peak growing season

As of July 5, 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 — Alta

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

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • 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 Alta

  • 51002

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.