Clarksville, Tennessee 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
- TodayJul 4Overcast——94°67°—
- SundayJul 5Overcast23%—92°74°-2°
- MondayJul 6Light Showers42%0.07″86°69°-6°
- TuesdayJul 7Overcast20%—81°66°-5°
- WednesdayJul 8Overcast26%—86°64°+5°
- ThursdayJul 9Partly Cloudy29%—93°66°+7°
- FridayJul 10Overcast54%—94°73°+1°
AQI 46 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 55 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 63 around 1 PM.
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 55 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 63 around 1 PM.
- Present
- AQI 55
- UV peak
- 8.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 63
PM × Wind × Precip
PM2.5 at 9.9 µg/m³ (AQI 52) with a 0.94 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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
- 10:39 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Clarksville at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: March 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 37040, 37042, 37043
16-Day Forecast — Clarksville
- Sat94°67°6%
- Sun92°74°23%
- Mon86°69°42%
- Tue81°66°20%
- Wed86°64°26%
- Thu93°66°29%
- Fri94°73°54%
- Sat85°70°44%
- Sun79°62°30%
- Mon78°58°11%
- Tue81°60°13%
- Wed85°61°26%
- Thu82°66°32%
- Fri89°68°42%
- Sat73°69°42%
- Sun78°69°48%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Clarksville
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 includes Clarksville 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.
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
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In Clarksville, July runs warmest near 80°F and January coldest around 37°F, while May is the wettest month (5.6 inches) and September the driest (3.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 37° | 4.0″ | 8 |
| February | 41° | 4.5″ | 7 |
| March | 50° | 4.8″ | 8 |
| April | 59° | 5.0″ | 8 |
| May | 68° | 5.6″ | 8 |
| June | 76° | 4.7″ | 7 |
| July | 80° | 4.6″ | 7 |
| August | 79° | 3.7″ | 6 |
| September | 72° | 3.4″ | 6 |
| October | 60° | 4.3″ | 6 |
| November | 48° | 4.1″ | 6 |
| December | 41° | 4.9″ | 8 |
Regional context
In Clarksville, NOAA NCEI 1991-2020 normals put January near 37°F and July near 80°F — a 42°F seasonal arc — with about 53.5 inches of precipitation over 84 rainy or snowy days.
No season owns Clarksville's rain: May reaches 5.6 inches across 8.3 days and September keeps 3.4 inches on 5.7, an even spread through Clarksville's year. That even rhythm groups Clarksville with places like Adams, TN, Cedar Hill, TN and Slayden, TN.
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: Adams, TN, Cedar Hill, TN, Slayden, TN, Pleasant View, TN, Cumberland City, TN.
Naturalist notes
Late April often brings the first blooms of dogwood trees as temperatures stabilize after the last spring frost.
May marks the peak of warbler migration, when dozens of species pass through Tennessee's forests on their journey north.
Frequently asked
- When does it freeze in Clarksville?
- Frost typically leaves Clarksville by mid-April and returns to Clarksville near mid-November.
- What is the rainy season in Clarksville?
- May is the wettest month in Clarksville, about 5.6 inches on average; the year totals roughly 54 inches.
- What is the warmest month in Clarksville?
- July is Clarksville's warmest month, averaging about 80°F.
- What is the coldest month in Clarksville?
- Clarksville bottoms out in January, with a mean near 37°F.
- When can I start a vegetable garden in Clarksville?
- Clarksville's last frost (mid-April) cues hardy greens; in Clarksville, hold heat-lovers two weeks past.
- How many rainy days does Clarksville get?
- Clarksville averages about 84 days with measurable rain or snow each year.
- What hardiness zone is Clarksville?
- Clarksville's USDA zone comes from its January mean (37°F); enter the ZIP on the USDA lookup for the number.
- 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
Clarksville, Tennessee occupies a humid subtropical zone, with January means near 37°F and July around 80°F — a 43°F swing.
Clarksville sees close to 54 inches of precipitation annually, falling across some 84 wet days.
The 43°F gap between Clarksville's summer and winter, at 36.6°N, shapes Clarksville's frost calendar.
ZIP codes in Clarksville
- 42223
- 37043
- 37042
- 37040
- 37041
- 37044