Clarksville, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Clarksville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle35%0.01″84°69°—
- SundayJul 5Overcast23%—83°68°-1°
- MondayJul 6Overcast——82°65°-1°
- TuesdayJul 7Overcast——83°64°+1°
- WednesdayJul 8T-storm w/ Hail42%0.02″83°66°0°
- ThursdayJul 9Overcast44%—79°63°-4°
- FridayJul 10Overcast12%—80°63°+1°
AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.74 fine-to-coarse ratio and 3 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
Ozone × UV × Sky
Ozone at AQI 44 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 3.6 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.74 fine-to-coarse ratio and 3 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
- 11:09 PM
- Moonset
- 10:13 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Clarksville at a glance
- Today vs. normal: 15°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: 50619
16-Day Forecast — Clarksville
- Sat84°69°35%
- Sun83°68°23%
- Mon82°65°1%
- Tue83°64°3%
- Wed83°66°42%
- Thu79°63°44%
- Fri80°63°12%
- Sat76°57°8%
- Sun79°56°13%
- Mon79°57°9%
- Tue81°61°6%
- Wed79°59°23%
- Thu85°64°26%
- Fri84°63°30%
- Sat72°60°25%
- Sun77°59°26%
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 — Clarksville
SPC includes Clarksville 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 Clarksville
- 50619