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Johnson County, TN Weather Forecast
Johnson County, TN Weather Forecast Dated: 149 PM Wed Sep 16 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and a stable pattern will dominate. Isolated storms at times.
Wednesday, September 16, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
78°F 25°C
Sunny
Early-Evening
76°F 25°C
Overcast
Pleasant near 78°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
65°F 19°C
Sunny
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
76°F 25°C
Partly Cloudy
Comfortable with temperatures reaching 75°F 24°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with increasing humidity and barometric pressure falling.
Friday, September 18, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
75°F 24°C
Light Showers
Early-Evening
75°F 24°C
Scattered Showers
Enjoyable around 75°F 24°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. A stray shower or storm late in the day.
Saturday, September 19, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
74°F 24°C
Light Showers
Early-Evening
72°F 23°C
Light Showers
Mild temperatures up to 74°F 24°C, drier morning followed by showers lasting through evening, with steady humidity and steady pressure.
Sunday, September 20, 2026
Mid-Morning
63°F 17°C
Light Fog
Mid-Afternoon
69°F 21°C
Light Showers
Early-Evening
74°F 24°C
Light Showers
Mild with a high of 69°F 21°C, clouds and showers taking over for the afternoon and evening, with steady humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
72°F 22°C
Light Showers
Mid-Afternoon
70°F 21°C
Light Showers
Early-Evening
72°F 23°C
Light Showers
Pleasant near 70°F 21°C, on-and-off showers throughout the day, with increasing humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
64°F 18°C
Light Showers
Early-Evening
66°F 19°C
Fog
Comfortable at 64°F 18°C, intermittent showers through midday, easing by evening, with steady humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Rain Showers
Early-Evening
68°F 20°C
Light Fog
Cool with a high near 64°F 18°C, scattered downpours possible, with steady humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
65°F 19°C
Scattered Showers
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
69°F 21°C
Light Showers
Mild temperatures up to 70°F 21°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds turning from the S to the WSW at 7 mph 12 km/h. Gusts up to 21 mph 34 km/h.
Friday, September 25, 2026
Mid-Morning
47°F 8°C
Scattered Showers
Mid-Afternoon
58°F 15°C
Sunny
Early-Evening
59°F 15°C
Sunny
Mildly cool near 58°F 15°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the WNW to the WSW at 5 mph 9 km/h.
Saturday, September 26, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
65°F 18°C
Sunny
Pleasant near 69°F 20°C, sunny throughout the day, with lower humidity and steady pressure.
Sunday, September 27, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
65°F 18°C
Cloudy
Early-Evening
64°F 18°C
Sunny
Cool with a high near 65°F 18°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds SE at 8 mph 13 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
73°F 23°C
Partly Cloudy
Early-Evening
70°F 21°C
Sunny
Enjoyable around 73°F 23°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
78°F 26°C
Scattered Showers
Early-Evening
77°F 25°C
Overcast
Mild temperatures up to 78°F 26°C, scattered downpours possible, with steady humidity and steady pressure.
Johnson County, TN Weather Radar Map
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