Live Weather & Forecast
Weather in Portsmouth
Ohio, United States · Real-time conditions & 3-day outlook
20°C
Feels like 20°C
68°F / Feels 68°F
Sunny
Portsmouth, Ohio
🌞 Daytime
Updated: 2026-04-13 15:15
Humidity
63%
Wind
23 km/h SW
Wind Gust
26.5 km/h
Pressure
1022 mb
Visibility
16 km
UV Index
5
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
14.4°C
Wind Degree
231°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
141.9 μg/m³
NO₂
2.8 μg/m³
O₃
99 μg/m³
SO₂
2.9 μg/m³
PM 2.5
5.2 μg/m³
PM 10
5.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Portsmouth, Ohio
12 AM
21°
Clear
1 AM
20°
Clear
2 AM
20°
Clear
3 AM
20°
Clear
4 AM
21°
Clear
5 AM
21°
Clear
6 AM
21°
Clear
7 AM
22°
Sunny
8 AM
23°
Sunny
9 AM
24°
Sunny
10 AM
26°
Sunny
11 AM
28°
Sunny
12 PM
28°
Sunny
1 PM
28°
Partly Cloudy
2 PM
29°
Partly Cloudy
3 PM
20°
Sunny
4 PM
29°
Partly Cloudy
5 PM
28°
Sunny
6 PM
27°
Partly Cloudy
7 PM
24°
Partly Cloudy
8 PM
22°
Sunny
9 PM
22°
Clear
10 PM
22°
Patchy rain nearby
11 PM
21°
Clear
3-Day Forecast
Daily overview for Portsmouth, Ohio
Today
Sunny
30°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 44%
💨 Max wind: 23 km/h
🌧️ Total precip: 0.05 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:59 AM
🌇 Sunset: 08:07 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Cloudy
26°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 23 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:57 AM
🌇 Sunset: 08:08 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Sunny
28°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 57%
💨 Max wind: 21.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:56 AM
🌇 Sunset: 08:09 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Portsmouth
Plan your trip to Portsmouth, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Portsmouth?
Current conditions in Portsmouth: Sunny, temperature 20°C, humidity 63%.
What is the best time to visit Portsmouth?
The best time to visit Portsmouth is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Portsmouth?
Portsmouth is located at approximately 38.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Portsmouth?
The wettest period in Portsmouth is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Portsmouth?
For visits to Portsmouth during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Portsmouth in?
Portsmouth is located in United States, in the state of Ohio.
What are the public holidays in Portsmouth in 2026?
View the 2026 public holidays for Portsmouth on our Holidays page.
What are the GPS coordinates used for the weather forecast in Portsmouth?
The weather forecast for Portsmouth uses coordinates 38.7345, -82.9963.