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

Clarksville, Indiana Weather

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

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

Clarksville, IN
Saturday, July 4 at 4:20 PM
90
°
Clear
Feels like
98°
Humidity
54%
Wind
7 mph
Sunrise
2:24 AM
Sunset
5:10 PM
Clarksville, IN
Hour by hour · 24h
24-Hour ForecastClarksville, IN: 24-hour forecast. Temperatures range from 75 to 90 degrees Fahrenheit with a 24% chance of precipitation at 3 PM.
L 75°H 90°
Clarksville, IN
7-day forecast
  1. Today
    Jul 4
    Partly Cloudy
    —
    —
    90°70°—
  2. Sunday
    Jul 5
    Heavy Rain
    24%
    0.53″
    84°75°-6°
  3. Monday
    Jul 6
    Light Drizzle
    23%
    —
    80°69°-4°
  4. Tuesday
    Jul 7
    Overcast
    14%
    —
    82°66°+2°
  5. Wednesday
    Jul 8
    Clear
    12%
    —
    85°63°+3°
  6. Thursday
    Jul 9
    Overcast
    28%
    —
    88°68°+3°
  7. Friday
    Jul 10
    Drizzle
    53%
    0.12″
    89°74°+1°
Clarksville, IN
Next 24 hours · Warm now
HOT 90°72°83°94°12p6p12a6anow 90°high 90°low 75°PRECIP %
Clarksville, IN
Anemometer · 24h winds · from true
NESW
From · True
W
261° · backing 174°
Direction
W
261°
Sustained
7
mph
Gust
9
mph
Peak 24h
20
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 20 @ 12:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 176SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Clarksville, IN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
998.3
-1.3 mb in 3h · falling · 29.48 inHg
Now
998.3
mb
3h
-1.3
mb
12h
-1.6
mb
24h
-1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 998–1001
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1001.4998.4998.4
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Clarksville, IN
Air quality
50
AQI
Good
→-2 in 6h▲Peak ~84 @ 11 PM

AQI 50 (Good), driven by Ozone. Ozone at AQI 90 — peak already passed at 1 PM under clear 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
9.7μg/m³
PM 10Good
11μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
131μg/m³
UV IndexModerate
3.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 90 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 90
UV peak
2.7 at earlier today
Sky at peak
clear
Projected peak
AQI 90

PM × Wind × Precip

PM2.5 at 9.7 µg/m³, PM10 at 10.9 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.89
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/m³360
Clarksville, IN
Sky cover · visibility · 24h
Cloud cover
3%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
69.7mi
UNLIMITED
71 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
20:20 UTC · Clarksville, IN · 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
20:20 UTC · Clarksville, IN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Clarksville, IN
Satellite · infrared · animated
Clarksville, IN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Clarksville, IN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:54 AM
Sunrise
2:24 AM
Daylight
14h 46m
Sunset
5:10 PM
Civil dusk
9:42 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Clarksville, IN
The moon
Waning Gibbous
79% illuminated
Moonrise
11:35 PM
Moonset
10:50 AM
In sign
♓︎ Pisces
Clarksville, IN
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Clarksville at a glance

  • Today vs. normal: 17°F above the seasonal normal for this latitude
  • Last frost: April 6 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 47129

16-Day Forecast — Clarksville

  1. Sat89°70°7%
  2. Sun84°75°24%
  3. Mon80°69°23%
  4. Tue82°66°14%
  5. Wed85°63°12%
  6. Thu88°68°28%
  7. Fri89°74°53%
  8. Sat83°69°44%
  9. Sun76°61°21%
  10. Mon78°57°11%
  11. Tue81°57°12%
  12. Wed84°58°17%
  13. Thu86°64°29%
  14. Fri87°68°26%
  15. Sat76°69°37%
  16. Sun80°67°40%

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 — Clarksville

SPC has placed Clarksville in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • 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.

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——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

Clarksville's warmest month is July (~79°F mean) and its coldest is January (~35°F). Rainfall peaks in May (4.8 inches) and bottoms out in August (3.3 inches).

MonthMean tempPrecipRainy days
January35°3.5″6
February38°3.5″6
March47°4.5″8
April58°4.8″8
May68°4.8″8
June76°4.4″8
July79°3.5″6
August78°3.3″6
September72°3.9″5
October60°3.5″5
November47°3.8″6
December39°4.5″7

Regional context

In Clarksville, NOAA NCEI 1991-2020 normals put January near 35°F and July near 79°F — a 45°F seasonal arc — with about 48 inches of precipitation over 79 rainy or snowy days.

No season owns Clarksville's rain: May reaches 4.8 inches across 8.0 days and August keeps 3.3 inches on 5.5, an even spread through Clarksville's year. That even rhythm groups Clarksville with places like New Albany, IN, Jeffersonville, IN and Sellersburg, IN.

Clarksville reaches its last hard frost near mid-April; that is the cue for peas, lettuce, spinach, and radishes. Tomatoes and peppers do best set out two weeks later in Clarksville, once nights clear the mid-40s°F. Frost returns to Clarksville near mid-November, ending the tender-crop season. Clarksville's low ground holds frost later into spring than Clarksville's benches, which run 3-5 days ahead.

Similar climates: New Albany, IN, Jeffersonville, IN, Sellersburg, IN, Floyds Knobs, IN, Utica, IN.

Frequently asked

When does it freeze in Clarksville?
Clarksville's last spring frost lands near mid-April, and in Clarksville the first fall frost follows around mid-November.
What is the rainy season in Clarksville?
May is the wettest month in Clarksville, about 4.8 inches on average; the year totals roughly 48 inches.
What is the warmest month in Clarksville?
On average July tops the year in Clarksville at about 79°F.
What is the coldest month in Clarksville?
The coldest stretch in Clarksville falls in January, around 35°F on average.
When can I start a vegetable garden in Clarksville?
Hardy spring crops go in near mid-April in Clarksville; tender peppers and squash wait 10–14 days.
How many rainy days does Clarksville get?
Clarksville averages about 79 days with measurable rain or snow each year.
What hardiness zone is Clarksville?
Because Clarksville bottoms near 35°F in January, that winter low sets Clarksville's USDA zone — verify by ZIP.
What is the 10-day forecast for Clarksville?
Clarksville'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 Clarksville?
See this week's day-by-day rain chances for Clarksville in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Clarksville?
Current conditions for Clarksville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Clarksville forecast updated?
The Clarksville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Clarksville?
Today's sunrise and sunset times for Clarksville 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 Clarksville?
The next few days in Clarksville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Clarksville, Indiana, the humid subtropical climate runs from about 35°F in January to 79°F in July, a 44°F seasonal range.

Yearly precipitation in Clarksville totals around 48 inches, spread over about 79 days of rain or snow.

Clarksville's 44°F range, set by its 38.3°N position, drives frost timing and what thrives in Clarksville.

All cities in Indiana →

Louisville, KY weather →

ZIP codes in Clarksville

  • 47129
  • 47172

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.