Lookout Mountain, Tennessee Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Lookout Mountain weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——73°60°—
- TuesdayJun 16Overcast——75°62°+2°
- WednesdayJun 17Thunderstorm12%—80°64°+5°
- ThursdayJun 18Thunderstorm81%0.64″71°65°-9°
- FridayJun 19Thunderstorm72%0.06″73°62°+2°
- SaturdayJun 20Overcast19%—81°57°+8°
- SundayJun 21Overcast26%—85°56°+4°
AQI 26 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:34 AM
- Moonset
- 9:07 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Lookout Mountain at a glance
- Today vs. normal: 16°F below the seasonal normal for this latitude
- Last frost: March 17 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Lookout Mountain
- Mon73°60°2%
- Tue75°62°9%
- Wed80°64°12%
- Thu71°65°81%
- Fri73°62°72%
- Sat81°57°19%
- Sun85°56°26%
- Mon74°64°47%
- Tue81°61°48%
- Wed73°60°31%
- Thu81°57°31%
- Fri85°62°45%
- Sat90°64°42%
- Sun92°67°42%
- Mon91°69°52%
- Tue93°68°50%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Lookout Mountain
SPC has placed Lookout Mountain in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- 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 · June 11–15
Sun climbs to its northern throne
Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.
Day 166 of 365 · Wedge 33 of 72
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
Lookout Mountain's warmest month is July (~79°F mean) and its coldest is January (~39°F). Rainfall peaks in December (5.4 inches) and bottoms out in October (2.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 39° | 5.1″ | 16 |
| February | 42° | 4.5″ | 15 |
| March | 50° | 5.3″ | 17 |
| April | 59° | 4.6″ | 15 |
| May | 67° | 3.6″ | 16 |
| June | 76° | 3.5″ | 16 |
| July | 79° | 4.1″ | 21 |
| August | 78° | 4.3″ | 21 |
| September | 73° | 2.8″ | 14 |
| October | 63° | 2.4″ | 9 |
| November | 50° | 4.1″ | 12 |
| December | 42° | 5.4″ | 15 |
Regional context
Lookout Mountain swings from 39°F in January to 79°F in July (40°F) per NOAA NCEI 1991-2020 normals; precipitation in Lookout Mountain runs about 49.8 inches on roughly 187 measurable days.
Rainfall in Lookout Mountain stays even across the calendar: December tops out at 5.4 inches over 15.4 rainy days, and October still logs 2.4 inches across 9.3 — a narrow range for Lookout Mountain. That even rhythm groups Lookout Mountain with places like Ridgeside, TN, East Ridge, TN and Whiteside, TN.
Once Lookout Mountain passes mid-March, overnight freezes fade and peas, lettuce, spinach, and radishes can be sown. Lookout Mountain's heat-lovers — tomatoes, peppers, squash — hold off until Lookout Mountain's frost risk clears, 10-14 days on. Frost returns to Lookout Mountain near mid-December, ending the tender-crop season. Lookout Mountain's low ground holds frost later into spring than Lookout Mountain's benches, which run 3-5 days ahead.
Similar climates: Ridgeside, TN, East Ridge, TN, Whiteside, TN, Chattanooga, TN, Red Bank, TN.
Frequently asked
- When does it freeze in Lookout Mountain?
- Lookout Mountain's last spring frost lands near mid-March, and in Lookout Mountain the first fall frost follows around mid-December.
- What is the rainy season in Lookout Mountain?
- Lookout Mountain sees its heaviest rain in December (around 5.4 inches), part of roughly 50 inches a year.
- What is the warmest month in Lookout Mountain?
- The warmest stretch in Lookout Mountain comes in July, around 79°F on average.
- What is the coldest month in Lookout Mountain?
- On average January is the chilliest month in Lookout Mountain, about 39°F.
- When can I start a vegetable garden in Lookout Mountain?
- Frost-hardy sowings begin at mid-March in Lookout Mountain; warm-season starts follow two weeks on.
- How many rainy days does Lookout Mountain get?
- Expect roughly 187 wet days a year in Lookout Mountain.
- What hardiness zone is Lookout Mountain?
- Lookout Mountain's USDA zone comes from its January mean (39°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Lookout Mountain?
- Lookout Mountain'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 Lookout Mountain?
- See this week's day-by-day rain chances for Lookout Mountain in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Lookout Mountain?
- Current conditions for Lookout Mountain and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Lookout Mountain forecast updated?
- The Lookout Mountain forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Lookout Mountain?
- Day length in Lookout Mountain peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Lookout Mountain?
- The next few days in Lookout Mountain's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Lookout Mountain, Tennessee has a humid subtropical climate: January averages roughly 39°F, July about 79°F, 40°F between them.
Yearly precipitation in Lookout Mountain totals around 50 inches, spread over about 187 days of rain or snow.
At 35.0°N, Lookout Mountain's 40°F summer-to-winter swing sets when Lookout Mountain's gardens wake and when frost returns.
ZIP codes in Lookout Mountain
- 37350