Cromwell, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Cromwell weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——87°67°—
- MondayJul 6Light Drizzle——88°67°+1°
- TuesdayJul 7Overcast——83°66°-5°
- WednesdayJul 8T-storm w/ Hail43%—88°66°+5°
- ThursdayJul 9Light Showers55%0.11″76°65°-12°
- FridayJul 10Light Drizzle25%—80°63°+4°
- SaturdayJul 11Overcast——82°65°+2°
AQI 31 (Good), driven by Ozone. AQI down 10 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:37 PM
- Moonset
- 11:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cromwell at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50842
15-Day Forecast — Cromwell
- Sun87°67°6%
- Mon88°67°2%
- Tue83°66°2%
- Wed88°66°43%
- Thu76°65°55%
- Fri80°63°25%
- Sat82°65°7%
- Sun85°68°7%
- Mon86°69°2%
- Tue90°72°2%
- Wed86°66°6%
- Thu86°66°23%
- Fri83°68°14%
- Sat84°66°17%
- Sun89°69°19%
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 — Cromwell
SPC includes Cromwell 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 Cromwell
- 50842
- 50801