Weather in Portsmouth, OH
Updated 2026-09-26 10:00 local time · ZIP codes 45662
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
55°3% rain60°2% rain64°1% rain68°1% rain70°1% rain71°1% rain71°1% rain70°1% rain67°1% rain63°4% rain
59°5% rain57°6% 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 6%).
It feels like 51°F with winds near 6 mph.
70°F, 1% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 12 mph.
Current temperature is 55°F, wind 6 mph, rain chance up to 6%.
UV index is 2.
Local weather characteristics in Portsmouth
Ohio has four distinct seasons with humid summers and cold winters. Lake Erie can influence clouds, temperatures and snowfall across northern parts of the state.
Portsmouth is part of the Midwest weather region. The forecast point is near 38.73°N latitude and 83.00°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.
Portsmouth weather today
Sunny and 55°F in Portsmouth, OH. Today's high is 71°F with a 6% rain chance. Winds are around 6 mph with gusts near 11 mph. Relative humidity is 58%, pressure is 30.17 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Portsmouth
Sunrise is at 07:23 AM and sunset is at 07:23 PM. Tomorrow's forecast calls for Sunny with a high near 73°F and a low near 46°F. The maximum rain chance is 5%.