Promise City, Iowa Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Promise City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle49%0.02″84°69°—
- SundayJul 5Overcast11%—88°68°+4°
- MondayJul 6Mostly Clear——89°67°+1°
- TuesdayJul 7Overcast——84°65°-5°
- WednesdayJul 8T-storm w/ Hail28%—88°66°+4°
- ThursdayJul 9T-storm w/ Hail55%0.04″82°69°-6°
- FridayJul 10Light Drizzle34%—81°67°-1°
AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.0 µg/m³ (AQI 53) with a 0.85 fine-to-coarse ratio and 4 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.
What's driving it
PM × Wind × Precip
PM2.5 at 10.0 µg/m³ (AQI 53) with a 0.85 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- 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
- 11:32 PM
- Moonset
- 11:25 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Promise City at a glance
- Today vs. normal: 73°F — typical for the season
- 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: 52583
16-Day Forecast — Promise City
- Sat84°69°49%
- Sun88°68°11%
- Mon89°67°3%
- Tue84°65°1%
- Wed88°66°28%
- Thu82°69°55%
- Fri81°67°34%
- Sat76°64°6%
- Sun77°60°7%
- Mon82°59°5%
- Tue85°65°3%
- Wed85°68°7%
- Thu88°69°17%
- Fri92°72°17%
- Sat94°75°13%
- Sun86°67°13%
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 — Promise City
SPC includes Promise City 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 Promise City
- 52583