Dennis, Mississippi Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Dennis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——81°67°—
- TuesdayJun 16Overcast14%—81°67°0°
- WednesdayJun 17T-storm w/ Hail12%—86°68°+5°
- ThursdayJun 18Thunderstorm68%0.37″75°67°-11°
- FridayJun 19Light Drizzle72%—85°65°+10°
- SaturdayJun 20Overcast——86°61°+1°
- SundayJun 21T-storm w/ Hail32%—84°68°-2°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.8 µg/m³ (AQI 32) with a 0.97 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
PM × Wind × Precip
PM2.5 at 5.8 µg/m³ (AQI 32) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:47 AM
- Moonset
- 8:17 PM
- In sign
- ♊︎ Gemini
Sun climbs to its northern throne
Dennis at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: March 14 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Dennis
- Mon81°67°2%
- Tue81°67°14%
- Wed86°68°12%
- Thu75°67°68%
- Fri85°65°72%
- Sat86°61°9%
- Sun84°68°32%
- Mon90°69°46%
- Tue86°70°46%
- Wed78°70°27%
- Thu85°70°25%
- Fri89°72°53%
- Sat94°73°37%
- Sun95°75°43%
- Mon92°72°62%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Dennis
SPC has placed Dennis in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- 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 Dennis
- 38838