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

Hiawatha, Iowa Weather

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

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

Hiawatha, IA
Saturday, July 4 at 11:12 PM
71
°
Clear
Feels like
75°
Humidity
87%
Wind
4 mph
Sunrise
12:36 AM
Sunset
3:45 PM
Hiawatha, IA
Hour by hour · 24h
24-Hour ForecastHiawatha, IA: 24-hour forecast. Temperatures range from 67 to 83 degrees Fahrenheit.
L 67°H 83°
Hiawatha, IA
7-day forecast
  1. Today
    Jul 4
    Heavy Rain
    72%
    1.2″
    83°67°—
  2. Sunday
    Jul 5
    Overcast
    —
    —
    83°67°0°
  3. Monday
    Jul 6
    Mostly Clear
    —
    —
    85°67°+2°
  4. Tuesday
    Jul 7
    Overcast
    —
    —
    83°64°-2°
  5. Wednesday
    Jul 8
    T-storm w/ Hail
    39%
    —
    84°65°+1°
  6. Thursday
    Jul 9
    Heavy Drizzle
    56%
    0.05″
    74°64°-10°
  7. Friday
    Jul 10
    Overcast
    16%
    —
    79°65°+5°
Hiawatha, IA
Next 24 hours · Mild now
62°75°88°6p12a6a12pnow 71°high 83°low 67°
Hiawatha, IA
Anemometer · 24h winds · from true
NESW
From · True
NE
047° · backing 131°
Direction
NE
047°
Sustained
4
mph
Gust
12
mph
Peak 24h
25
avg 6
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 6 · pk 25 @ 6:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 135SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 131° from the ne.
Hiawatha, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
983.9
+0.2 mb in 3h · steady · 29.05 inHg
Now
983.9
mb
3h
+0.2
mb
12h
-2.0
mb
24h
-0.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 983–986
9759809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW986.4982.6983.9
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Hiawatha, IA
Air quality
42
AQI
Good
↑+5 in 6h

AQI 42 (Good), driven by Ozone. AQI up 5 over the last 6 hours (gradual rise).

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

PM 2.5Good
3.9μg/m³
PM 10Good
5μg/m³
NO₂Good
6μg/m³
OzoneDRIVERModerate
62μg/m³
UV IndexLow
0.0

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Hiawatha, IA
Sky cover · visibility · 24h
Cloud cover
5%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
31.2mi
UNLIMITED
57 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
04:12 UTC · Hiawatha, 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
04:12 UTC · Hiawatha, IA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Hiawatha, IA
Satellite · infrared · animated
Hiawatha, IA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Hiawatha, IA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:03 AM
Sunrise
12:36 AM
Daylight
15h 09m
Sunset
3:45 PM
Civil dusk
9:21 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Hiawatha, IA
The moon
Waning Gibbous
76% illuminated
Moonrise
11:26 PM
Moonset
11:18 AM
In sign
♓︎ Pisces
Hiawatha, IA
Microseason
Jul 1–5

Cicadas claim the afternoon

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Hiawatha at a glance

  • Today vs. normal: 71°F — typical for the season
  • Last frost: April 28 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 52233

16-Day Forecast — Hiawatha

  1. Sat83°67°72%
  2. Sun83°67°6%
  3. Mon85°67°4%
  4. Tue83°64°2%
  5. Wed84°65°39%
  6. Thu74°64°56%
  7. Fri79°65°16%
  8. Sat76°62°6%
  9. Sun76°54°7%
  10. Mon79°59°7%
  11. Tue84°67°5%
  12. Wed80°66°18%
  13. Thu85°69°19%
  14. Fri87°74°19%
  15. Sat88°76°29%
  16. Sun82°62°14%

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 — Hiawatha

SPC includes Hiawatha 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.

January 1–5: Winter settles deep on the plains.January 6–10: Arctic cold grips the heartland.January 11–15: Sunlight returns to the sloped terrain.January 16–20: Ring-necked pheasants call from cover.January 21–25: Deepest cold locks the prairie.January 26–31: Deep winter's pivot point.February 1–5: February's first breath.February 6–10: Subtle shifts in the light.February 11–15: Bald eagles concentrate on open water.February 16–20: Cold rebound before the final thaw.February 21–25: First killdeer return to thawed fields.February 26–28: Winter's veil grows thin.March 1–5: Ice withdraws from the land.March 6–10: Hibernators wake to open air.March 11–15: Spring arrives with fury and grace.March 16–20: Sandhill Cranes Rise from the Platte.March 21–25: Equinox — Night and Day Hold Balance.March 26–31: First Green Breaks Through Brown Earth.April 1–5: Thunder Voices Wake the Prairie.April 6–10: Cliff Swallows Return to Mud Nests.April 11–15: Wild Geese Wing North in Massive Flocks.April 16–20: Rainbows Follow Afternoon Storms.April 21–25: Prairie Sedges Push Through Wet Soil.April 26–30: Last Frost Retreats North.May 1–5: Wildflowers Erupt Across the Prairie.May 6–10: Grain Rains Feed the Growing Fields.May 11–15: Seedlings Rise From Frost-Free Soil.May 16–20: Roses Bloom Along the Shelter Rows.May 21–25: Summer Arrives Early in Wind and Heat.May 26–31: Frogs Begin Their Nightly Chorus.June 1–5: Prairie lightning bugs rise.June 6–10: Earthworms surface after rain.June 11–15: Toward the solstice glow.June 16–20: Lesser ripening, greater heat.June 21–25: Solstice—sun at zenith.June 26–30: Fireflies in the darkening oak.July 1–5: Cicadas claim the afternoon.July 6–10: Warm wind sweeps the tallgrass.July 11–15: Thunder builds every afternoon.July 16–20: Corn tassels and reaches peak.July 21–25: Dog days settle in haze.July 26–31: Katydid chorus erupts at dusk.August 1–5: Great rains sometimes fall.August 6–10: Autumn's edge approaches.August 11–15: Cool wind rises from the north.August 16–20: Late summer wind through tallgrass.August 21–25: Dew settles on the tallgrass.August 26–31: Monarchs gather on prairie.September 1–5: Corn tassels and heavy skies.September 6–10: Purple asters rise on the prairie.September 11–15: Hawks ride thermal currents south.September 16–20: Equinox brings balance to day.September 21–25: Thunder stills across the plains.September 26–30: Snow geese wheel through the flyway.October 1–5: Prairie enters dormancy slowly.October 6–10: Geese gather on autumn waters.October 11–15: First widespread freeze arrives.October 16–20: Oaks turn bronze and russet.October 21–25: Frost deepens through the night.October 26–31: Light rains fall on frozen ground.November 1–5: Tallgrass turns gold.November 6–10: North wind strips the oak.November 11–15: Frost locks the prairie.November 16–20: Open sky grows cold.November 21–25: First snow falls soft.November 26–30: Blizzard drives the herds.December 1–5: Deep winter takes hold.December 6–10: Sky closes cold, winter reigns.December 11–15: Darkness deepens, life retreats.December 16–20: Rivers turn to stone.December 21–25: Solstice — sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the afternoon

Millions of periodical and annual cicadas emerge, their droning chorus filling the summer heat; the soundtrack of midsummer settles over prairie and wetland.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
April——
Maylettuce, peas, spinach, radisheslettuce, peas, radishes
Junelettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
Augusttomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
October—winter squash, tomatoes (last)
November——
December——

A year in weather

The year in Hiawatha tops out in July (~73°F) and dips lowest in January (~20°F), with June wettest at 5.6 inches and January driest at 0.9 inches.

MonthMean tempPrecipRainy days
January20°0.9″3
February24°1.2″3
March37°2.0″5
April49°3.6″7
May60°4.3″8
June70°5.6″9
July73°4.4″6
August71°4.1″6
September63°3.4″6
October51°2.9″5
November37°2.0″4
December25°1.6″4

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Hiawatha's January averages 20°F and July 73°F — 53°F apart — while precipitation totals roughly 35.9 inches over some 67 days.

Hiawatha's rain peaks in summer: June brings 5.6 inches over 8.5 thunderstorm-fed days, while January sees just 0.9 inches across 2.9 days under cooler, drier air. It is a warm-season-wet pattern Hiawatha shares with places like Robins, IA, Marion, IA and Palo, IA.

By late-May the frosts ease in Hiawatha, opening the season for kale, peas, spinach, and parsnips. Warm-soil crops in Hiawatha wait about two weeks past Hiawatha's last frost, once the soil warms. Around early-October, freezing nights resume in Hiawatha and tender crops must come in. Within Hiawatha, cold-air pooling chills low spots by 5-10°F, shifting Hiawatha's local frost dates.

Similar climates: Robins, IA, Marion, IA, Palo, IA, Cedar Rapids, IA, Alburnett, IA.

Frequently asked

When does it freeze in Hiawatha?
Hiawatha's last spring frost lands near mid-May, and in Hiawatha the first fall frost follows around mid-October.
What is the rainy season in Hiawatha?
June is the wettest month in Hiawatha, about 5.6 inches on average; the year totals roughly 36 inches.
What is the warmest month in Hiawatha?
Hiawatha peaks in July, when the mean runs near 73°F.
What is the coldest month in Hiawatha?
January is Hiawatha's coldest month, averaging about 20°F.
When can I start a vegetable garden in Hiawatha?
In Hiawatha, sow peas and hardy greens around mid-May; Hiawatha's tomatoes and peppers wait two weeks more.
How many rainy days does Hiawatha get?
Hiawatha records around 67 days of measurable precipitation annually.
What hardiness zone is Hiawatha?
Because Hiawatha bottoms near 20°F in January, that winter low sets Hiawatha's USDA zone — verify by ZIP.
What is the 10-day forecast for Hiawatha?
Hiawatha's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Hiawatha?
See this week's day-by-day rain chances for Hiawatha in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Hiawatha?
Current conditions for Hiawatha and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Hiawatha forecast updated?
The Hiawatha forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Hiawatha?
Today's sunrise and sunset times for Hiawatha are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Hiawatha?
The next few days in Hiawatha's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer humid continental zone, Hiawatha, Iowa swings from 20°F in the heart of winter to 73°F at midsummer — a 53°F arc.

Hiawatha sees close to 36 inches of precipitation annually, falling across some 67 wet days.

Hiawatha's 53°F range, set by its 42.1°N position, drives frost timing and what thrives in Hiawatha.

All cities in Iowa →

Cedar Rapids, IA weather →

ZIP codes in Hiawatha

  • 52411
  • 52233

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.