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Chattanooga Valley, Georgia Weather

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

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

Chattanooga Valley, GA
Saturday, July 4 at 11:15 AM
84
°
Clear
Feels like
93°
Humidity
69%
Wind
7 mph
Sunrise
2:32 AM
Sunset
4:58 PM
Chattanooga Valley, GA
Hour by hour · 24h
24-Hour ForecastChattanooga Valley, GA: 24-hour forecast. Temperatures range from 77 to 94 degrees Fahrenheit.
L 77°H 94°
Chattanooga Valley, GA
7-day forecast
  1. Today
    Jul 4
    Partly Cloudy
    11%
    —
    94°72°—
  2. Sunday
    Jul 5
    Overcast
    28%
    —
    94°77°0°
  3. Monday
    Jul 6
    Light Showers
    61%
    —
    93°72°-1°
  4. Tuesday
    Jul 7
    Thunderstorm
    45%
    —
    90°70°-3°
  5. Wednesday
    Jul 8
    T-storm w/ Hail
    42%
    —
    93°69°+3°
  6. Thursday
    Jul 9
    Light Drizzle
    37%
    —
    91°71°-2°
  7. Friday
    Jul 10
    Light Drizzle
    55%
    —
    93°71°+2°
Chattanooga Valley, GA
Next 24 hours · Warm now
HOT 90°72°85°98°12p6p12a6anow 84°high 94°low 77°PRECIP %
Chattanooga Valley, GA
Anemometer · 24h winds · from true
NESW
From · True
NNE
023° · backing 63°
Direction
NNE
023°
Sustained
7
mph
Gust
9
mph
Peak 24h
19
avg 4
Beaufort · 2 · LIGHT BRZ
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 19 @ 9:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 113SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Chattanooga Valley, GA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
992.4
-0.4 mb in 3h · steady · 29.31 inHg
Now
992.4
mb
3h
-0.4
mb
12h
-1.3
mb
24h
-1.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 991–995
9859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW994.8990.9992.5
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Chattanooga Valley, GA
Air quality
65
AQI
Moderate
→+3 in 6h▲Peak ~72 @ 9 PM

AQI 65 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 88 now. With UV 5.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 69 around 1 PM.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.

PM 2.5Moderate
18.7μg/m³
PM 10Good
21μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
130μg/m³
UV IndexHigh
5.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 88 now. With UV 5.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 69 around 1 PM.

Present
AQI 88
UV peak
5.9 at 1 PM
Sky at peak
clear
Projected peak
AQI 69

PM × Wind × Precip

PM2.5 at 18.7 µg/m³, PM10 at 20.8 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.90
Wind
light
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).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³370
Chattanooga Valley, GA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
47.9mi
UNLIMITED
84 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
15:15 UTC · Chattanooga Valley, GA · 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
15:15 UTC · Chattanooga Valley, GA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Chattanooga Valley, GA
Satellite · infrared · animated
Chattanooga Valley, GA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Chattanooga Valley, GA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:04 AM
Sunrise
2:32 AM
Daylight
14h 26m
Sunset
4:58 PM
Civil dusk
9:29 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Chattanooga Valley, GA
The moon
Waning Gibbous
81% illuminated
Moonrise
11:29 PM
Moonset
10:52 AM
In sign
♓︎ Pisces
Chattanooga Valley, GA
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Chattanooga Valley at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: March 17 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Chattanooga Valley

  1. Sat94°72°11%
  2. Sun94°77°28%
  3. Mon93°72°61%
  4. Tue90°70°45%
  5. Wed93°69°42%
  6. Thu91°71°37%
  7. Fri93°71°55%
  8. Sat78°72°49%
  9. Sun89°71°32%
  10. Mon84°64°14%
  11. Tue85°59°17%
  12. Wed77°64°35%
  13. Thu89°63°35%
  14. Fri80°70°24%
  15. Sat78°70°29%
  16. Sun87°71°52%

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 — Chattanooga Valley

SPC includes Chattanooga Valley 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.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the scorching afternoon

Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.

Day 185 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

July is Chattanooga Valley's warmest stretch (~79°F) and January its coldest (~39°F); precipitation crests in December at 5.4 inches and ebbs in October to 2.4 inches.

MonthMean tempPrecipRainy days
January39°5.1″16
February42°4.5″15
March50°5.3″17
April59°4.6″15
May67°3.6″16
June76°3.5″16
July79°4.1″21
August78°4.3″21
September73°2.8″14
October63°2.4″9
November50°4.1″12
December42°5.4″15

Regional context

In Chattanooga Valley, NOAA NCEI 1991-2020 normals put January near 39°F and July near 79°F — a 40°F seasonal arc — with about 49.8 inches of precipitation over 187 rainy or snowy days.

No season owns Chattanooga Valley's rain: December reaches 5.4 inches across 15.4 days and October keeps 2.4 inches on 9.3, an even spread through Chattanooga Valley's year. That even rhythm groups Chattanooga Valley with places like Fairview, GA, Lookout Mountain, GA and West Brow, GA.

Around mid-March, Chattanooga Valley sheds its freezing nights — peas, lettuce, spinach, and radishes go into Chattanooga Valley's beds. Chattanooga Valley's heat-lovers — tomatoes, peppers, squash — hold off until Chattanooga Valley's frost risk clears, 10-14 days on. Frost returns to Chattanooga Valley near mid-December, ending the tender-crop season. Chattanooga Valley's low ground holds frost later into spring than Chattanooga Valley's benches, which run 3-5 days ahead.

Similar climates: Fairview, GA, Lookout Mountain, GA, West Brow, GA, Chickamauga, GA, Rossville, GA.

Frequently asked

When does it freeze in Chattanooga Valley?
Frost typically leaves Chattanooga Valley by mid-March and returns to Chattanooga Valley near mid-December.
What is the rainy season in Chattanooga Valley?
Rainfall in Chattanooga Valley peaks in December near 5.4 inches, out of about 50 inches annually.
What is the warmest month in Chattanooga Valley?
The warmest stretch in Chattanooga Valley comes in July, around 79°F on average.
What is the coldest month in Chattanooga Valley?
On average January is the chilliest month in Chattanooga Valley, about 39°F.
When can I start a vegetable garden in Chattanooga Valley?
Frost-hardy sowings begin at mid-March in Chattanooga Valley; warm-season starts follow two weeks on.
How many rainy days does Chattanooga Valley get?
Expect roughly 187 wet days a year in Chattanooga Valley.
What hardiness zone is Chattanooga Valley?
Chattanooga Valley's hardiness zone tracks its winter low; with January near 39°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for Chattanooga Valley?
Chattanooga Valley's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Chattanooga Valley?
See this week's day-by-day rain chances for Chattanooga Valley in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Chattanooga Valley?
Current conditions for Chattanooga Valley and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Chattanooga Valley forecast updated?
The Chattanooga Valley forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Chattanooga Valley?
Today's sunrise and sunset times for Chattanooga Valley are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Chattanooga Valley?
The next few days in Chattanooga Valley's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Chattanooga Valley, Georgia occupies a humid subtropical zone, with January means near 39°F and July around 79°F — a 40°F swing.

In a typical year Chattanooga Valley records about 50 inches of precipitation on around 187 days.

Latitude 34.9°N gives Chattanooga Valley its 40°F swing, and with it the rhythm of Chattanooga Valley's growing season.

All cities in Georgia →

Chattanooga, TN weather →

ZIP codes in Chattanooga Valley

  • 30741
  • 30725

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.