Weather in Williamsport, TN
Updated 2026-08-11 10:15 local time · ZIP codes 38487
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
85°5% rain91°3% rain93°2% rain94°2% rain95°2% rain95°2% rain95°1% rain94°1% rain92°1% rain88°2% rain
85°2% rain84°3% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 5%).
It feels like 92°F with winds near 7 mph.
85°F, 2% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 17 mph.
Current temperature is 85°F, wind 7 mph, rain chance up to 5%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Williamsport weather today
Sunny and 85°F in Williamsport, TN. Today's high is 95°F with a 4% rain chance. Winds are around 7 mph with gusts near 9 mph. Relative humidity is 67%, pressure is 30.09 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Williamsport
Sunrise is at 06:04 AM and sunset is at 07:43 PM. Tomorrow's forecast calls for Sunny with a high near 95°F and a low near 74°F. The maximum rain chance is 7%.