Cosby, TN Weather Forecast

Local 7-day forecast

78°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Cosby, TN in one place.

Thursday, September 17, 2026
Wind: 0 to 5 mph NW
Thursday

Sunny, with a high near 78. Northwest wind 0 to 5 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Cosby, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 16, 2026 5:04 AM EDT.

The active forecast window currently covers Sep 17 to Sep 22, 2026 for Cosby, TN.

Page Snapshot

Page focus
city weather
Forecast window
Sep 17 to Sep 22, 2026
Latest sync
Sep 16, 2026 5:04 AM EDT
Forecast office
MRX
Source
NOAA / NWS
Next High
78°F
Thursday
Next Low
67°F
Thursday Night
Rain Outlook
9
Periods mentioning precipitation
Windiest
5 to 10 mph
Saturday Night

Daily Outlook

Today
Sep 17
Sunny
78 °F
/ 67°F
Wind 0 to 5 mph
Fri
Sep 18
Showers And Thunderstorms Likely
77 °F
/ 65°F
Wind 0 to 5 mph
Sat
Sep 19
Chance Showers And Thunderstorms
77 °F
/ 64°F
Wind 0 to 5 mph
Sun
Sep 20
Showers And Thunderstorms Likely
77 °F
/ 64°F
Wind 0 to 5 mph
Mon
Sep 21
Showers And Thunderstorms Likely
76 °F
/ 63°F
Wind 0 to 5 mph
Tue
Sep 22
Showers And Thunderstorms Likely
73 °F
Wind 5 mph

This Week in Cosby

Thursday looks like the warmest upcoming period in Cosby at 78 degrees F.

Monday Night is the coolest period ahead with temperatures near 63 degrees F.

The strongest winds are forecast for Saturday Night at about 5 to 10 mph S.

Precipitation is mentioned in 9 upcoming forecast periods.

Forecast Details

Last updated
Sep 16, 2026 5:04 AM EDT
Coverage
6 days
Time zone
America/New_York
Forecast office
MRX
Radar station
KMRX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Thursday Night
Sep 17
67°F
Partly Cloudy
0 to 5 mph W

Partly cloudy, with a low around 67. West wind 0 to 5 mph.

Friday
Sep 18
77°F
Showers And Thunderstorms Likely
0 to 5 mph W

A slight chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 77. West wind 0 to 5 mph. Chance of precipitation is 60%.

Friday Night
Sep 18
65°F
Showers And Thunderstorms Likely
0 to 5 mph W

Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 65. West wind 0 to 5 mph. Chance of precipitation is 60%.

Saturday
Sep 19
77°F
Chance Showers And Thunderstorms
0 to 5 mph SW

A chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 50%.

Saturday Night
Sep 19
64°F
Chance Showers And Thunderstorms then Partly Cloudy
5 to 10 mph S

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 50%.

Sunday
Sep 20
77°F
Showers And Thunderstorms Likely
0 to 5 mph W

A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 77. Chance of precipitation is 60%.

Sunday Night
Sep 20
64°F
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
0 to 5 mph S

Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 64. Chance of precipitation is 60%.

Monday
Sep 21
76°F
Showers And Thunderstorms Likely
0 to 5 mph N

A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 76. Chance of precipitation is 70%.

Monday Night
Sep 21
63°F
Showers And Thunderstorms Likely
5 mph SE

Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

Tuesday
Sep 22
73°F
Showers And Thunderstorms Likely
5 mph E

A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 73.

Detailed Forecast

Period Conditions Temp Wind
Thursday
Sep 17
Sunny
78°F
0 to 5 mph
NW
Thursday Night
Sep 17
Partly Cloudy
67°F
0 to 5 mph
W
Friday
Sep 18
Showers And Thunderstorms Likely
77°F
0 to 5 mph
W
Friday Night
Sep 18
Showers And Thunderstorms Likely
65°F
0 to 5 mph
W
Saturday
Sep 19
Chance Showers And Thunderstorms
77°F
0 to 5 mph
SW
Saturday Night
Sep 19
Chance Showers And Thunderstorms then Partly Cloudy
64°F
5 to 10 mph
S
Sunday
Sep 20
Showers And Thunderstorms Likely
77°F
0 to 5 mph
W
Sunday Night
Sep 20
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
64°F
0 to 5 mph
S
Monday
Sep 21
Showers And Thunderstorms Likely
76°F
0 to 5 mph
N
Monday Night
Sep 21
Showers And Thunderstorms Likely
63°F
5 mph
SE
Tuesday
Sep 22
Showers And Thunderstorms Likely
73°F
5 mph
E
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.