Decatur, Mississippi Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Decatur weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Heavy Showers23%1.0″88°75°—
- MondayJul 6Overcast31%—90°74°+2°
- TuesdayJul 7Light Showers31%—92°72°+2°
- WednesdayJul 8Light Drizzle13%—92°71°0°
- ThursdayJul 9Drizzle17%—94°72°+2°
- FridayJul 10Overcast18%—93°72°-1°
- SaturdayJul 11Overcast36%—93°73°0°
AQI 64 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 22.6 µg/m³ (AQI 76) with a 0.93 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 22.6 µg/m³ (AQI 76) with a 0.93 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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
- 11:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Decatur at a glance
- Today vs. normal: 78°F — typical for the season
- Last frost: March 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 39327
16-Day Forecast — Decatur
- Sun88°75°23%
- Mon90°74°31%
- Tue92°72°31%
- Wed92°71°13%
- Thu94°72°17%
- Fri93°72°18%
- Sat93°73°36%
- Sun91°70°49%
- Mon89°69°37%
- Tue95°71°18%
- Wed97°74°18%
- Thu98°75°32%
- Fri96°72°45%
- Sat94°73°39%
- Sun92°73°35%
- Mon95°74°35%
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 — Decatur
SPC has placed Decatur 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 Decatur
- 39327