Helena, Mississippi Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Helena weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Showers27%0.11″90°77°—
- MondayJul 6Drizzle58%0.03″86°75°-4°
- TuesdayJul 7T-storm w/ Hail47%—95°75°+9°
- WednesdayJul 8T-storm w/ Hail27%—91°75°-4°
- ThursdayJul 9Light Showers15%—93°75°+2°
- FridayJul 10Light Drizzle14%—94°76°+1°
- SaturdayJul 11Overcast26%—93°76°-1°
AQI 42 (Good), driven by PM2.5. AQI down 17 over the last 6 hours — air quality is improving sharply. PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.84 fine-to-coarse ratio and 3 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 32. Overcast through the UV peak window (cloud cover ~85%) — afternoon ozone should stay flat.
- Present
- AQI 32
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.84 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- 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
- 11:06 PM
- Moonset
- 11:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Helena at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: February 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Helena
- Sun90°77°27%
- Mon86°75°58%
- Tue95°75°47%
- Wed91°75°27%
- Thu93°75°15%
- Fri94°76°14%
- Sat93°76°26%
- Sun80°73°51%
- Mon78°72°51%
- Tue89°73°34%
- Wed89°75°18%
- Thu90°75°39%
- Fri91°73°42%
- Sat90°72°42%
- Sun80°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 — Helena
SPC includes Helena 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 Helena
- 39562