Charter Oak, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Charter Oak weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy10%—89°67°—
- MondayJul 6Mostly Clear——91°68°+2°
- TuesdayJul 7Overcast——88°69°-3°
- WednesdayJul 8Drizzle38%—92°71°+4°
- ThursdayJul 9Overcast38%—81°64°-11°
- FridayJul 10Overcast12%—82°65°+1°
- SaturdayJul 11Showers—0.70″90°66°+8°
AQI 41 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.4 µg/m³ (AQI 30) with a 0.87 fine-to-coarse ratio and 2 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 5.4 µg/m³ (AQI 30) with a 0.87 fine-to-coarse ratio and 2 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
- 11:35 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Charter Oak at a glance
- Today vs. normal: 70°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: 51439
15-Day Forecast — Charter Oak
- Sun89°67°10%
- Mon91°68°1%
- Tue88°69°3%
- Wed92°71°38%
- Thu81°64°38%
- Fri82°65°12%
- Sat90°66°7%
- Sun87°67°6%
- Mon90°68°3%
- Tue93°71°2%
- Wed87°66°7%
- Thu94°66°13%
- Fri87°68°13%
- Sat89°67°24%
- Sun98°73°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 — Charter Oak
SPC includes Charter Oak 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 Charter Oak
- 51439