Huntsville, Alabama Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Huntsville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——83°57°—
- SaturdayJun 6Overcast——86°63°+3°
- SundayJun 7Light Rain43%0.17″78°69°-8°
- MondayJun 8Light Showers61%—80°69°+2°
- TuesdayJun 9Light Drizzle39%—89°68°+9°
- WednesdayJun 10Light Drizzle24%—91°71°+2°
- ThursdayJun 11Light Drizzle17%—93°73°+2°
AQI 33 (Good), driven by PM2.5. AQI down 16 over the last 6 hours — air quality is improving sharply. PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.95 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
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.95 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:34 AM
- Moonset
- 3:05 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Huntsville at a glance
- Today vs. normal: 22°F below the seasonal normal for this latitude
- Last frost: March 15 (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 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 — Huntsville
SPC has placed Huntsville in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- 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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
July brings Huntsville's peak heat with mean temperatures around 81°F, while January delivers the year's coldest conditions at roughly 43°F. December sees the heaviest rainfall at 5.9 inches, contrasting with September's drier 3.5 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 43° | 5.0″ | 7 |
| February | 47° | 5.1″ | 8 |
| March | 54° | 5.4″ | 8 |
| April | 63° | 4.9″ | 7 |
| May | 71° | 4.7″ | 7 |
| June | 79° | 4.1″ | 7 |
| July | 81° | 4.5″ | 7 |
| August | 81° | 3.5″ | 6 |
| September | 75° | 3.5″ | 4 |
| October | 64° | 3.6″ | 5 |
| November | 53° | 4.3″ | 6 |
| December | 46° | 5.9″ | 7 |
Regional context
Huntsville falls within the broader humid subtropical climate region, sharing temperature ranges, seasonal rhythms, and growing conditions with other cities across this zone.
Similar climates: Birmingham, AL, Mobile, AL, Montgomery, AL, Tuscaloosa, AL, Auburn, AL.
Naturalist notes
Late April brings the soft yellow blooms of tulip poplar trees across Huntsville's woodlands.
Ruby-throated hummingbirds return from their winter migration in early May, drawn to flowering native plants.
Frequently asked
- When does it freeze in Huntsville?
- Mid-March typically marks Huntsville's last spring frost, while the first fall frost usually arrives around mid-December.
- What is the rainy season in Huntsville?
- December brings the heaviest rainfall with about 5.9 inches on average, contributing to the city's annual total of roughly 54 inches.
- What is the warmest month in Huntsville?
- July typically delivers the year's highest temperatures, averaging about 81°F.
- What is the coldest month in Huntsville?
- January brings the coldest temperatures, averaging about 43°F.
- When can I start a vegetable garden in Huntsville?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-March, while warm-season varieties such as tomatoes and peppers should wait 1–2 weeks after.
- How many rainy days does Huntsville get?
- Huntsville experiences approximately 79 rainy days per year.
- What hardiness zone is Huntsville?
- Check the USDA's online lookup tool with Huntsville's ZIP code to find the current hardiness zone designation, which reflects the city's lowest average winter temperatures.
Climate
Huntsville, Alabama experiences a humid subtropical climate zone. Winter temperatures in January hover near 43°F, while July brings averages of 81°F — creating a 39°F seasonal swing.
Annual precipitation totals about 54 inches across roughly 79 rainy days throughout the year.
Geography shapes the local weather patterns through latitude (34.7°N), proximity to large water bodies, and elevation. These factors determine what grows here, when frost threatens, and the daily weather patterns residents experience.