Hamburg, Iowa Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Hamburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——87°66°—
- MondayJul 6Clear——89°69°+2°
- TuesdayJul 7Overcast——86°67°-3°
- WednesdayJul 8Overcast37%—88°67°+2°
- ThursdayJul 9Thunderstorm48%0.97″85°69°-3°
- FridayJul 10Light Showers29%0.01″79°65°-6°
- SaturdayJul 11Overcast10%—84°62°+5°
AQI 32 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 47 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 6.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 47
PM × Wind × Precip
PM2.5 at 4.6 µg/m³ (AQI 26) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:42 PM
- Moonset
- 11:36 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Hamburg at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 51640
16-Day Forecast — Hamburg
- Sun86°66°3%
- Mon89°68°1%
- Tue86°67°1%
- Wed88°67°37%
- Thu85°69°48%
- Fri79°65°29%
- Sat84°62°10%
- Sun92°68°3%
- Mon81°66°2%
- Tue83°63°5%
- Wed82°64°6%
- Thu85°65°8%
- Fri84°67°39%
- Sat89°67°19%
- Sun90°69°16%
- Mon91°70°16%
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 — Hamburg
SPC includes Hamburg 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 Hamburg
- 51640