Portsmouth weather
At 8:30 PM local time it was cloudy and 16°C (60°F). Little to no rain in the next 24 hours. Best months for weather: Apr–Oct. Portsmouth sits 161 m (528 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Portsmouth, Ohio, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 1%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season Apr–OctOff season Dec–Feb
About Portsmouth weather
Is it raining in Portsmouth right now?
No. It’s cloudy and 16° right now. Little to no rain in the next 24 hours.
What’s the weather like in Portsmouth this week?
Over the next 7 days, expect highs of 16–24° and lows of 6–17°. Rain is likely on 2 of 7 days (Wednesday, Thursday). The driest day looks like Saturday.
Has it been raining in Portsmouth lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Portsmouth?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Portsmouth weather by month
When is the best time to visit Portsmouth?
Based on weather alone, the best time to visit Portsmouth is Apr–Oct, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 4°C (39°F) in January to 31°C (87°F) in August.
What is the rainiest month in Portsmouth?
May is the wettest month, with about 118 mm (4.6 in) of rain on average. January is the driest, with about 74 mm (2.9 in).
What is the hottest month in Portsmouth?
August is the warmest, with average highs of 31°C (87°F) and lows of 18°C (64°F). January is the coolest, with highs of 4°C (39°F) and lows of -5°C (23°F).
Does Portsmouth have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is May at about 118 mm (4.6 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months