Lookout Mountain, Chattanooga Weather
Lookout Mountain weather this week
Over the next 7 days in Lookout Mountain, daytime highs range from 13°C to 20°C and night-time lows from 1°C to 7°C. The warmest afternoon is likely on Saturday at 20°C, while the coolest night is expected tonight at 1°C. Temperatures trend warmer through the week, rising by about 5°C. Expect a wide gap of around 12°C between afternoon and early-morning temperatures, so mornings will feel noticeably cooler.
No significant rain is expected in Lookout Mountain this week. The highest rain chance is just 1%, on Saturday.
Winds stay mostly light this week, peaking at about 15 km/h today. UV levels stay moderate or lower, peaking at 4. Average humidity is a comfortable 61% or so.
| Day | Conditions | High / Low | Rain chance | Rain | Max wind |
|---|---|---|---|---|---|
| Today (Sunday) | Overcast | 13° / 1° | 0% | 0.0 mm | 15 km/h |
| Tomorrow (Monday) | Clear sky | 13° / 1° | 0% | 0.0 mm | 9 km/h |
| Tuesday | Clear sky | 15° / 3° | 0% | 0.0 mm | 5 km/h |
| Wednesday | Overcast | 16° / 4° | 0% | 0.0 mm | 7 km/h |
| Thursday | Overcast | 18° / 5° | 0% | 0.0 mm | 5 km/h |
| Friday | Overcast | 19° / 7° | 0% | 0.0 mm | 8 km/h |
| Saturday | Partly cloudy | 20° / 6° | 1% | 0.0 mm | 11 km/h |
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Today's outlook for Lookout Mountain
At 00:00 local time it is 2°C in Lookout Mountain under clear skies, feeling like -1°C. Today's forecast high is 13°C and the low is 1°C, and the day overall looks overcast. Rain is unlikely today (0% chance). Winds are blowing at about 7 km/h from the west. Humidity is 61%.
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Climate of Lookout Mountain: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Lookout Mountain, with average daytime highs around 32°C. January is the coolest, when nights typically fall to about -1°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 34°C, so the seasons feel very different from each other.
The area receives about 1350 mm of rain in a typical year. Most of it falls from September and November to July (around 86% of the yearly total), and December is the wettest month at roughly 140 mm.
For outdoor plans and travel, October usually offers the most comfortable weather in Lookout Mountain, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 9° | -1° | 109 mm | 83% |
| Feb | 11° | 0° | 122 mm | 83% |
| Mar | 16° | 5° | 118 mm | 81% |
| Apr | 22° | 9° | 115 mm | 78% |
| May | 26° | 14° | 115 mm | 77% |
| Jun | 30° | 19° | 106 mm | 73% |
| Jul | 32° | 21° | 127 mm | 71% |
| Aug | 32° | 20° | 96 mm | 70% |
| Sep | 29° | 16° | 108 mm | 70% |
| Oct | 23° | 10° | 89 mm | 72% |
| Nov | 16° | 4° | 109 mm | 76% |
| Dec | 11° | 0° | 140 mm | 84% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Lookout Mountain. Values describe typical conditions, not a forecast.
About Lookout Mountain weather
Lookout Mountain is set in Tennessee's humid subtropical climate, from the Mississippi lowlands to the Appalachian east, about 162 km south-west of Knoxville. Summers bring hot, humid summers (June–August) with highs often above 32°C. The year winds down with mild-to-cool winters (December–February), colder in the eastern highlands. This page shows live, auto-refreshing weather for Lookout Mountain: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Lookout Mountain is about 162 km south-west of Knoxville, in Tennessee.
Lookout Mountain sees mild-to-cool winters (December–February), colder in the eastern highlands.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Lookout Mountain's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Lookout Mountain, with average daytime highs of about 32°C and nights around 21°C.
The coldest nights come in January, when the average low is about -1°C and daytime highs reach around 9°C. Frost is possible on clear, calm nights.
Lookout Mountain receives about 1350 mm of rain in a typical year. December is the wettest month at roughly 140 mm, and the main rainy period is September and November to July.
October usually offers the most comfortable weather in Lookout Mountain, with mild daytime temperatures and little rain.
In November Lookout Mountain typically sees daytime highs near 16°C and lows near 4°C, with about 109 mm of rain over the month and average humidity around 76%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Lookout Mountain is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Lookout Mountain's day-to-day weather follows the broader pattern of Tennessee described above. See the hourly weather forecast or the air quality index for more detail.