Weather StoryAlmanac, microseasons, and the day's weather story.

Huntsville, Tennessee Weather

Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Huntsville weather forecast — hour by hour, 7-day outlook, NOAA radar

Huntsville, TN
Saturday, July 4 at 4:02 PM
87
°
Overcast
Feels like
92°
Humidity
52%
Wind
3 mph
Sunrise
2:25 AM
Sunset
4:59 PM
Huntsville, TN
Hour by hour · 24h
24-Hour ForecastHuntsville, TN: 24-hour forecast. Temperatures range from 71 to 89 degrees Fahrenheit with a 27% chance of precipitation at 3 PM.
L 71°H 89°
Huntsville, TN
7-day forecast
  1. Today
    Jul 4
    Light Drizzle
    32%
    87°68°
  2. Sunday
    Jul 5
    Rain
    29%
    0.13″
    89°71°+2°
  3. Monday
    Jul 6
    Light Showers
    57%
    90°69°+1°
  4. Tuesday
    Jul 7
    Drizzle
    26%
    83°65°-7°
  5. Wednesday
    Jul 8
    Overcast
    32%
    86°63°+3°
  6. Thursday
    Jul 9
    Overcast
    42%
    90°64°+4°
  7. Friday
    Jul 10
    Mostly Clear
    56%
    90°68°
Huntsville, TN
Anemometer · 24h winds · from true
NESW
From · True
WSW
250° · backing 120°
Direction
WSW
250°
Sustained
3
mph
Gust
6
mph
Peak 24h
21
avg 4
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 21 @ 9:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 95SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Huntsville, TN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
967.9
-1.1 mb in 3h · falling · 28.58 inHg
Now
967.9
mb
3h
-1.1
mb
12h
+0.5
mb
24h
-1.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 967971
960965970975-21h-18h-15h-12h-9h-6h-3h-24hNOW970.7967.0967.9
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Huntsville, TN
Air quality
34
AQI
Good
+11 in 6hPeak ~44 @ 11 PM

AQI 34 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 48 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
5.7μg/m³
PM 10Good
6μg/m³
NO₂Good
0μg/m³
OzoneDRIVERUnhealthy SG
102μg/m³
UV IndexModerate
5.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 48 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

Present
AQI 48
UV peak
4.5 at earlier today
Sky at peak
overcast
Projected peak
AQI 48

PM × Wind × Precip

PM2.5 at 5.7 µg/m³ (AQI 32) with a 0.89 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.89
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Huntsville, TN
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
73.0mi
UNLIMITED
79 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:02 UTC · Huntsville, TN · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:02 UTC · Huntsville, TN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Huntsville, TN
Satellite · infrared · animated
Huntsville, TN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Huntsville, TN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:56 AM
Sunrise
2:25 AM
Daylight
14h 34m
Sunset
4:59 PM
Civil dusk
9:31 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Huntsville, TN
The moon
Waning Gibbous
79% illuminated
Moonrise
11:27 PM
Moonset
10:47 AM
In sign
♓︎ Pisces
Huntsville, TN
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Huntsville at a glance

  • Today vs. normal: 12°F above the seasonal normal for this latitude
  • Last frost: March 25 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 37756

16-Day Forecast — Huntsville

  1. Sat86°68°32%
  2. Sun89°71°29%
  3. Mon90°69°57%
  4. Tue83°65°26%
  5. Wed86°63°32%
  6. Thu90°64°42%
  7. Fri90°68°56%
  8. Sat79°68°53%
  9. Sun74°58°34%
  10. Mon79°53°14%
  11. Tue84°56°13%
  12. Wed86°60°23%
  13. Thu83°66°52%
  14. Fri88°66°56%
  15. Sat85°66°42%
  16. Sun83°66°66%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, 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 Marginal Risk category for severe thunderstorms tomorrow.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWMRGLMarginal Risk
  • 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 Huntsville

  • 37756
  • 37755

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.