Heidelberg, Mississippi Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Heidelberg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——81°70°—
- ThursdayJun 4Overcast——79°62°-2°
- FridayJun 5Overcast——86°62°+7°
- SaturdayJun 6Heavy Drizzle63%0.02″79°66°-7°
- SundayJun 7Light Showers57%—82°70°+3°
- MondayJun 8Overcast48%—91°70°+9°
- TuesdayJun 9Overcast51%—91°70°0°
PM2.5 at 8.3 µg/m³, PM10 at 10.1 µg/m³ — typical background levels with no transport signature. AQI flat over the last 6 hours (within ±4 points).
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. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.
- Present
- AQI 44
- UV peak
- 6.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 8.3 µg/m³, PM10 at 10.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.82
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:20 AM
- Moonset
- 1:20 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Heidelberg at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: February 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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 — Heidelberg
SPC has placed Heidelberg 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.