Lebanon, Tennessee Weather
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Climate of Lebanon: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Lebanon, with average daytime highs around 32°C. January is the coolest, when nights typically fall to about -2°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 1370 mm of rain in a typical year. Most of it falls from November to August (around 86% of the yearly total), and February is the wettest month at roughly 132 mm.
For outdoor plans and travel, September to October usually offer the most comfortable weather in Lebanon, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 7° | -2° | 106 mm | 84% |
| Feb | 9° | -1° | 132 mm | 84% |
| Mar | 15° | 4° | 116 mm | 82% |
| Apr | 21° | 9° | 126 mm | 79% |
| May | 25° | 14° | 126 mm | 80% |
| Jun | 29° | 19° | 107 mm | 76% |
| Jul | 31° | 21° | 132 mm | 74% |
| Aug | 32° | 20° | 102 mm | 71% |
| Sep | 28° | 16° | 93 mm | 70% |
| Oct | 22° | 9° | 95 mm | 72% |
| Nov | 15° | 3° | 103 mm | 76% |
| Dec | 9° | 0° | 130 mm | 84% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Lebanon. Values describe typical conditions, not a forecast.
About Lebanon weather
Lebanon is a place in Tennessee's humid subtropical climate, from the Mississippi lowlands to the Appalachian east, located about 44 km east of Nashville. Lebanon gets hot, humid summers (June–August) with highs often above 32°C each year. Lebanon closes out the year with mild-to-cool winters (December–February), colder in the eastern highlands. This page shows live, auto-refreshing weather for Lebanon: 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/Chicago.
Frequently asked questions
Lebanon is about 44 km east of Nashville, in Tennessee.
Lebanon 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 Lebanon's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Lebanon, with average daytime highs of about 32°C and nights around 20°C.
The coldest nights come in January, when the average low is about -2°C and daytime highs reach around 7°C. Frost is possible on clear, calm nights.
Lebanon receives about 1370 mm of rain in a typical year. February is the wettest month at roughly 132 mm, and the main rainy period is November to August.
September to October usually offer the most comfortable weather in Lebanon, with mild daytime temperatures and little rain.
In November Lebanon typically sees daytime highs near 15°C and lows near 3°C, with about 103 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.
The current temperature for Lebanon updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Lebanon'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.