Weather in Portland, TN
Updated 2026-09-26 10:15 local time · ZIP codes 37148
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
63°7% rain
67°10% rain71°5% rain72°9% rain70°9% rain69°10% rain68°9% rain69°10% rain
70°4% rain
65°6% rain
63°11% rain
62°9% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 11%).
It feels like 55°F with winds near 8 mph.
70°F, 4% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 15 mph.
Current temperature is 63°F, wind 8 mph, rain chance up to 11%.
UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Portland
Tennessee has a humid climate with hot summers and relatively mild winters. Elevation in the east can make mountain locations notably cooler and wetter.
Portland is part of the South weather region. The forecast point is near 36.58°N latitude and 86.52°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Portland weather today
Cloudy and 63°F in Portland, TN. Today's high is 72°F with a 5% rain chance. Winds are around 8 mph with gusts near 12 mph. Relative humidity is 38%, pressure is 30.13 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Portland
Sunrise is at 06:37 AM and sunset is at 06:37 PM. Tomorrow's forecast calls for Partly Cloudy with a high near 77°F and a low near 53°F. The maximum rain chance is 5%.