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Jefferson County TN Weather - Mostly Clear - 71°F
Mostly Clear
71°F
Updated 7:08 am
Feels Like 78°F
Humidity 100%
Wind E 5 mph
Barometer  N/A in
Dew Point 71°F
Jefferson County TN Weather - Mostly Clear - 22°C
Mostly Clear
22°C
Updated 7:08 am
Feels Like 26°C
Humidity 100%
Wind E 8 km/h
Barometer  0 kPa
Dew Point 22°C
Jefferson County, TN Weather and Current Conditionsjefferson county tn weather forecast

Jefferson County, TN Weather Forecast

Jefferson County Tennessee WeatherJefferson County, Tennessee Weather Weather Forecast
14 day API Jefferson County, TN weather forecast. Note. Our 7-day weather forecast for Jefferson County, Tennessee is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Jefferson County, TN Weather Forecast Dated: 708 AM Wed Sep 02 2026 (Jefferson County Time)
Expect a hot stretch with plenty of sunshine and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.

Wednesday, September 2, 2026

Mid-Morning
Jefferson County Weather - 2026-09-02 - Morning - Sunny
86°F 30°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-02 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-02 - Evening - Sunny
88°F 31°C
Sunny
Sizzling hot near 92°F 33°C with a heat index reaching 95°F 35°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.

Thursday, September 3, 2026

Mid-Morning
Jefferson County Weather - 2026-09-03 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-03 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-03 - Evening - Patchy Rain Nearby
78°F 26°C
Scattered Showers
Hot and sweltering around 93°F 34°C (heat index 97°F 36°C), scattered downpours possible, with increasing humidity and steady pressure.

Friday, September 4, 2026

Mid-Morning
Jefferson County Weather - 2026-09-04 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-04 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-04 - Evening - Sunny
87°F 30°C
Sunny
Very hot with a high of 91°F 33°C, feeling closer to 95°F 35°C in the humidity, sunny throughout the day, with lower humidity and steady pressure.

Saturday, September 5, 2026

Mid-Morning
Jefferson County Weather - 2026-09-05 - Morning - Patchy Rain Nearby
73°F 23°C
Scattered Showers
Mid-Afternoon
Jefferson County Weather - 2026-09-05 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-05 - Evening - Sunny
81°F 27°C
Sunny
Sizzling hot near 91°F 33°C with a heat index reaching 96°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.

Sunday, September 6, 2026

Mid-Morning
Jefferson County Weather - 2026-09-06 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-06 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-06 - Evening - Cloudy
83°F 29°C
Cloudy
Quite warm reaching 86°F 30°C, feeling like 89°F 32°C during peak afternoon, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

Monday, September 7, 2026

Mid-Morning
Jefferson County Weather - 2026-09-07 - Morning - Overcast
74°F 23°C
Overcast
Mid-Afternoon
Jefferson County Weather - 2026-09-07 - Afternoon - Partly Cloudy
88°F 31°C
Partly Cloudy
Early-Evening
Jefferson County Weather - 2026-09-07 - Evening - Light Rain Shower
84°F 29°C
Light Showers
Very warm near 88°F 31°C, though humidity makes it feel like 92°F 33°C, dry most of the day, with showers developing late, with lower humidity and steady pressure.

Tuesday, September 8, 2026

Mid-Morning
Jefferson County Weather - 2026-09-08 - Morning - Partly Cloudy
74°F 24°C
Partly Cloudy
Mid-Afternoon
Jefferson County Weather - 2026-09-08 - Afternoon - Overcast
85°F 29°C
Overcast
Early-Evening
Jefferson County Weather - 2026-09-08 - Evening - Patchy Rain Nearby
84°F 29°C
Scattered Showers
Warm and summery around 85°F 29°C (feels like 89°F 32°C), periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling.

Wednesday, September 9, 2026

Mid-Morning
Jefferson County Weather - 2026-09-09 - Morning - Partly Cloudy
76°F 25°C
Partly Cloudy
Mid-Afternoon
Jefferson County Weather - 2026-09-09 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-09 - Evening - Cloudy
84°F 29°C
Cloudy
Quite warm reaching 88°F 31°C, feeling like 92°F 34°C during peak afternoon, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the WSW to the NE at 8 mph 12 km/h.

Thursday, September 10, 2026

Mid-Morning
Jefferson County Weather - 2026-09-10 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-10 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-10 - Evening - Sunny
88°F 31°C
Sunny
Very hot with a high of 92°F 33°C, feeling closer to 97°F 36°C in the humidity, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the SSE to the SW at 8 mph 12 km/h.

Friday, September 11, 2026

Mid-Morning
Jefferson County Weather - 2026-09-11 - Morning - Sunny
81°F 27°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-11 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-11 - Evening - Sunny
89°F 32°C
Sunny
Sizzling hot near 93°F 34°C with a heat index reaching 97°F 36°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the WSW to the SW at 6 mph 9 km/h.

Saturday, September 12, 2026

Mid-Morning
Jefferson County Weather - 2026-09-12 - Morning - Sunny
80°F 27°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-12 - Afternoon - Thundery Outbreaks In Nearby
92°F 33°C
Nearby Thunderstorms
Early-Evening
Jefferson County Weather - 2026-09-12 - Evening - Patchy Rain Nearby
85°F 30°C
Scattered Showers
Hot and sweltering around 92°F 33°C (heat index 96°F 36°C), locally heavy thunderstorms at times, with steady humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Jefferson County Weather - 2026-09-13 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-13 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-13 - Evening - Overcast
84°F 29°C
Overcast
Very hot with a high of 91°F 33°C, feeling closer to 96°F 35°C in the humidity, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
Jefferson County Weather - 2026-09-14 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-14 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-14 - Evening - Patchy Light Rain In Area With Thunder
87°F 31°C
Scattered Thunderstorms
Sizzling hot near 90°F 32°C with a heat index reaching 94°F 35°C, drier conditions through late afternoon before thunderstorms move in, with lower humidity and barometric pressure falling.

Tuesday, September 15, 2026

Mid-Morning
Jefferson County Weather - 2026-09-15 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Jefferson County Weather - 2026-09-15 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Jefferson County Weather - 2026-09-15 - Evening - Sunny
88°F 31°C
Sunny
Hot and sweltering around 91°F 33°C (heat index 95°F 35°C), sunny throughout the day, with lower humidity and barometric pressure falling.

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