Harrisburg, Arkansas Weather
Thunderheads boil and break at dusk. Day 16 of summer. Read this microseason across nine climate regions →
Harrisburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle16%—89°72°—
- MondayJul 6Overcast14%—89°71°0°
- TuesdayJul 7Overcast17%—89°74°0°
- WednesdayJul 8Light Showers——91°72°+2°
- ThursdayJul 9Clear——94°74°+3°
- FridayJul 10Clear25%—94°76°0°
- SaturdayJul 11Light Drizzle35%—96°75°+2°
AQI 45 (Good), driven by PM2.5. AQI up 8 over the last 6 hours (gradual rise). PM2.5 at 6.5 µg/m³ (AQI 36) with a 0.89 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
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~65%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 6.5 µg/m³ (AQI 36) with a 0.89 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:44 PM
- Moonset
- 12:20 PM
- In sign
- ♓︎ Pisces
Thunderheads boil and break at dusk
Harrisburg at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: March 20 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 72432
16-Day Forecast — Harrisburg
- Sun89°72°16%
- Mon89°72°14%
- Tue89°74°17%
- Wed91°72°7%
- Thu94°74°8%
- Fri94°76°25%
- Sat96°75°35%
- Sun94°72°24%
- Mon93°73°13%
- Tue93°75°5%
- Wed90°75°4%
- Thu85°67°25%
- Fri96°68°28%
- Sat88°74°35%
- Sun85°69°35%
- Mon92°70°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Harrisburg
SPC includes Harrisburg in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Harrisburg
- 72432