Morristown, Tennessee Weather
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Climate of Morristown: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Morristown, with average daytime highs around 30°C. January is the coolest, when nights typically fall to about -3°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 33°C, so the seasons feel very different from each other.
The area receives about 1280 mm of rain in a typical year. Most of it falls from December to July (around 70% of the yearly total), and July is the wettest month at roughly 137 mm.
For outdoor plans and travel, August to October usually offer the most comfortable weather in Morristown, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 7° | -3° | 100 mm | 82% |
| Feb | 9° | -2° | 109 mm | 82% |
| Mar | 14° | 2° | 105 mm | 80% |
| Apr | 19° | 7° | 115 mm | 77% |
| May | 23° | 12° | 107 mm | 78% |
| Jun | 28° | 17° | 108 mm | 75% |
| Jul | 29° | 18° | 137 mm | 74% |
| Aug | 30° | 18° | 98 mm | 71% |
| Sep | 27° | 14° | 99 mm | 70% |
| Oct | 20° | 8° | 84 mm | 72% |
| Nov | 14° | 2° | 96 mm | 75% |
| Dec | 9° | -1° | 117 mm | 82% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Morristown. Values describe typical conditions, not a forecast.
About Morristown weather
Morristown is one of many towns in Tennessee's humid subtropical climate, from the Mississippi lowlands to the Appalachian east, about 63 km north-east of Knoxville. Before the rains arrive, there's hot, humid summers (June–August) with highs often above 32°C. Cooler months mean mild-to-cool winters (December–February), colder in the eastern highlands. This page shows live, auto-refreshing weather for Morristown: 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
Morristown is about 63 km north-east of Knoxville, in Tennessee.
Morristown 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 Morristown's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Morristown, with average daytime highs of about 30°C and nights around 18°C.
The coldest nights come in January, when the average low is about -3°C and daytime highs reach around 7°C. Frost is possible on clear, calm nights.
Morristown receives about 1280 mm of rain in a typical year. July is the wettest month at roughly 137 mm, and the main rainy period is December to July.
August to October usually offer the most comfortable weather in Morristown, with mild daytime temperatures and little rain.
In November Morristown typically sees daytime highs near 14°C and lows near 2°C, with about 96 mm of rain over the month and average humidity around 75%. 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 Morristown is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Morristown'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.