Current conditions at
Portland Municipal Airport (K1M5)
Lat: 36.59°NLon: 86.48°WElev: 818ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Portland TN
Tonight
Low: 45 °F
Chance
Showers then
Mostly CloudyThursday
High: 56 °F
Mostly Sunny
then Chance
ShowersThursday Night

Low: 33 °F
Partly Cloudy
Friday

High: 47 °F
Areas Frost
then Mostly
SunnyFriday Night

Low: 27 °F
Frost
Saturday

High: 48 °F
Frost then
SunnySaturday Night

Low: 26 °F
Mostly Clear
Sunday

High: 52 °F
Mostly Sunny
Sunday Night

Low: 30 °F
Partly Cloudy
Detailed Forecast
Tonight
A 50 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 45. South southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers between 2pm and 5pm. Mostly sunny, with a high near 56. Northwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 33. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 47. Northwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Widespread frost, mainly after 9pm. Otherwise, mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 48. Calm wind becoming north northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 26. Calm wind.
Sunday
Mostly sunny, with a high near 52. Calm wind becoming east northeast around 5 mph.
Sunday Night
Partly cloudy, with a low around 30. Northeast wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Clear, with a low around 30.
Wednesday
Sunny, with a high near 58.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Portland TN
36.58°N 86.5°W (Elev. 833 ft)
36.58°N 86.5°W (Elev. 833 ft)
2:46 pm CST Nov 11, 2026
5pm CST Nov 11, 2026-6pm CST Nov 18, 2026


