Chatsworth, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chatsworth weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast12%—87°68°—
- SundayJul 5Overcast17%—90°67°+3°
- MondayJul 6Overcast——90°68°0°
- TuesdayJul 7Light Drizzle15%—94°69°+4°
- WednesdayJul 8Light Showers52%—88°69°-6°
- ThursdayJul 9Light Drizzle52%0.01″86°63°-2°
- FridayJul 10Overcast10%—82°62°-4°
AQI 46 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 45 — 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 45 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 45
- UV peak
- 6.1 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.74 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- 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
- 11:26 PM
- Moonset
- 10:29 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chatsworth at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 51011
16-Day Forecast — Chatsworth
- Sat87°68°12%
- Sun90°67°17%
- Mon90°68°2%
- Tue94°69°15%
- Wed88°69°52%
- Thu86°63°52%
- Fri82°62°10%
- Sat83°59°11%
- Sun86°60°7%
- Mon88°61°7%
- Tue89°63°6%
- Wed94°67°9%
- Thu96°67°13%
- Fri91°63°20%
- Sat80°60°13%
- Sun86°58°11%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Chatsworth
SPC has placed Chatsworth in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Chatsworth
- 51011
- 51023