Jefferson County, TN Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Jefferson County, TN Weather Forecast

Current Conditions

Settings
Jefferson County TN weather  - Mostly Clear - 68°F
Mostly Clear
68°F
Updated 11:08 pm
Feels Like 71°F
Humidity 88%
Wind N 0 mph
Barometer  30.09 in
Dew Point 64°F
Jefferson County TN weather  - Mostly Clear - 20°C
Mostly Clear
20°C
Updated 11:08 pm
Feels Like 22°C
Humidity 88%
Wind N 0 km/h
Barometer  101.9 kPa
Dew Point 18°C

Jefferson County Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Jefferson County, TN Weather - Tonight Mostly Clear Jefferson County, TN Weather - Wednesday Mostly Sunny Jefferson County, TN Weather - Wednesday Night Partly Cloudy Jefferson County, TN Weather - Thursday Chance Of T-Storm Jefferson County, TN Weather - Thursday Night Chance Of T-Storm Jefferson County, TN Weather - Friday Chance Of T-Storm Jefferson County, TN Weather - Friday Night Chance Of Showers Jefferson County, TN Weather - Saturday Chance Of T-Storm Jefferson County, TN Weather - Saturday Night Partly Cloudy Jefferson County, TN Weather - Sunday Chance Of T-Storm Jefferson County, TN Weather - Sunday Night Partly Cloudy Jefferson County, TN Weather - Monday Chance Of T-Storm
Mostly Clear Mostly Sunny Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Chance of T-Storm Partly Cloudy Chance of T-Storm Partly Cloudy Chance of T-Storm
Lo: 61°FLo: 16°C Hi: 90°FHi: 32°C
Lo: 69°FLo: 21°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C Hi: 91°FHi: 33°C
Lo: 70°FLo: 21°C Hi: 91°FHi: 33°C
POP: 50% POP: 50% POP: 70% POP: 20% POP: 40% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 706 PM EDT Tue Aug 25 2026 Jefferson County, TN Weather - WeatherWorld.com

Trending Headlines

Jefferson County Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Jefferson County Quick Facts

National Two Day Weather Forecast


E-mail the Jefferson County Weather Forecast

Voice your opinion or tell us about page issues...

Jefferson County Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 747 PM EDT Tue Aug 25 2026

Key Messages

Updated at 141 PM EDT Tue Aug 25 2026
  • Dry conditions with comfortable afternoon humidity levels continues this afternoon, and most locations will be dry Wednesday as well.
  • Highest chances for showers and storms will be Thursday and Friday.
  • Most locations should be dry for the weekend, but we will see a trend toward hotter conditions that will continue into the first part of the week.

Discussion

... Issued at 141 PM EDT Tue Aug 25 2026

The surface high pressure to our north that has been...