Duncan, Mississippi Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Duncan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast44%—92°76°—
- SundayJul 5Overcast19%—92°74°0°
- MondayJul 6Heavy Drizzle25%—93°73°+1°
- TuesdayJul 7Overcast13%—93°74°0°
- WednesdayJul 8Overcast10%—94°74°+1°
- ThursdayJul 9Overcast12%—92°74°-2°
- FridayJul 10Overcast20%—95°77°+3°
AQI 46 (Good), driven by PM2.5. AQI down 16 over the last 6 hours — air quality is improving sharply. PM2.5 at 5.9 µg/m³, PM10 at 6.5 µg/m³ — typical background levels with no transport signature.
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 31 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 31
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 5.9 µg/m³, PM10 at 6.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:17 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Duncan at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: March 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 38740
16-Day Forecast — Duncan
- Sat92°76°44%
- Sun92°74°19%
- Mon93°73°25%
- Tue93°74°13%
- Wed94°74°10%
- Thu92°74°12%
- Fri95°77°20%
- Sat93°70°36%
- Sun73°70°30%
- Mon83°70°16%
- Tue88°71°9%
- Wed90°76°18%
- Thu92°76°30%
- Fri94°75°19%
- Sat94°75°19%
- Sun96°73°26%
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 — Duncan
SPC has placed Duncan in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Duncan
- 38740