Weather forecast for tomorrow
Sunday, Jul 20.
5:20 am
8:18 pm
EDT
8:18 pm
EDT
PM Thunderstorms
81°F / 63°F
- Wind: 11mph S
- Humidity: 79%
- Precip. probability: 48%
- Precipitation: 0"
- UV index: 6
Tomorrow, in Portsmouth, storms with thunder and lightning are also expected during the afternoon.
Minimal precipitation is forecasted. The temperature variation is predicted to range from a maximum of a moderately hot 80.6°F to a minimum of an enjoyable 62.6°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be a tropical 86°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted top temperature is expected to be a few degrees higher than the usual July maximum of 76.3°F.
Sunrise will be at 5:20 am and sunset at 8:18 pm; tomorrow's daylight will last for 14h and 58min.
Minimal precipitation is forecasted. The temperature variation is predicted to range from a maximum of a moderately hot 80.6°F to a minimum of an enjoyable 62.6°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be a tropical 86°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted top temperature is expected to be a few degrees higher than the usual July maximum of 76.3°F.
Sunrise will be at 5:20 am and sunset at 8:18 pm; tomorrow's daylight will last for 14h and 58min.
Frequently asked questions
What is the weather forecast for Portsmouth for tomorrow?
Tomorrow, storms with thunder and lightning are expected during the afternoon.
Will it rain tomorrow?
Tomorrow, there is a low chance of minimal precipitation in Portsmouth.
What will be the maximum temperature tomorrow?
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 62.6°F. The maximum heat index, which combines air temperature and relative humidity, is appraised at 86°F.
The maximum temperature will be moderately higher than the average highest temperature of 76.3°F in July. The lowest temperature will be in line with the average low of 62.6°F.
The maximum temperature will be moderately higher than the average highest temperature of 76.3°F in July. The lowest temperature will be in line with the average low of 62.6°F.
When is the sunrise / sunset tomorrow?
On Sunday, in Portsmouth, sunrise will be at 5:20 am and sunset at 8:18 pm (EDT).
How many hours of daylight will Portsmouth have tomorrow?
Tomorrow, the daylight will last for 14h and 58min.
Hourly weather forecast
12 am
- 72°F
- Feels like:
73°F
Mostly Cloudy
- Wind: 8mph SSW
- Pressure: 29.91"Hg
- Humidity: 72%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 70°F
- Feels like:
72°F
Cloudy
- Wind: 7mph SSW
- Pressure: 29.88"Hg
- Humidity: 77%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 70°F
- Feels like:
72°F
Cloudy
- Wind: 7mph SSW
- Pressure: 29.85"Hg
- Humidity: 81%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
Sunrise: 5:20 am
6 am
- 70°F
- Feels like:
72°F
Cloudy
- Wind: 7mph SSW
- Pressure: 29.83"Hg
- Humidity: 87%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 10mi
8 am
- 73°F
- Feels like:
75°F
Cloudy
- Wind: 9mph SSW
- Pressure: 29.8"Hg
- Humidity: 84%
- Precip. probability: 16%
- Precipitation: 0"
- Visibility: 8mi
10 am
- 75°F
- Feels like:
81°F
Cloudy
- Wind: 9mph SSW
- Pressure: 29.77"Hg
- Humidity: 81%
- Precip. probability: 20%
- Precipitation: 0"
- Visibility: 7mi
12 pm
- 77°F
- Feels like:
82°F
Mostly Cloudy
- Wind: 10mph S
- Pressure: 29.71"Hg
- Humidity: 76%
- Precip. probability: 18%
- Precipitation: 0"
- Visibility: 8mi
2 pm
- 79°F
- Feels like:
84°F
Scattered Thunderstorms
- Wind: 11mph S
- Pressure: 29.65"Hg
- Humidity: 73%
- Precip. probability: 43%
- Precipitation: 0.08"
- Visibility: 7mi
4 pm
- 79°F
- Feels like:
82°F
Scattered Thunderstorms
- Wind: 9mph S
- Pressure: 29.62"Hg
- Humidity: 75%
- Precip. probability: 35%
- Precipitation: 0.04"
- Visibility: 7mi
6 pm
- 75°F
- Feels like:
79°F
Scattered Thunderstorms
- Wind: 8mph SSW
- Pressure: 29.62"Hg
- Humidity: 82%
- Precip. probability: 38%
- Precipitation: 0.04"
- Visibility: 7mi
8 pm
- 75°F
- Feels like:
77°F
Mostly Sunny
- Wind: 6mph WNW
- Pressure: 29.65"Hg
- Humidity: 80%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:18 pm
10 pm
- 72°F
- Feels like:
72°F
Mostly Clear
- Wind: 6mph NW
- Pressure: 29.68"Hg
- Humidity: 83%
- Precip. probability: 6%
- Precipitation: 0"
- Visibility: 10mi
Tomorrow, a combination of dull, bright and lightning-active weather is forecasted.
Rainfall is anticipated from 2 pm to 6 pm. With moderate precipitation of 0.16", most rainfall is expected at 5 pm.
The temperature will be between the lowest temperature of 69.8°F and the highest temperature of 78.8°F. The warmest part of the day will be from 1 pm to 5 pm.
The temperature is expected to be a few degrees higher than the average peak in July, which is 76.3°F. The temperature low is forecasted to be also consistent with the usual July value of 62.6°F.
July typically records the highest temperatures in Portsmouth, averaging 76.3°F for highs and 62.6°F for lows.
Rainfall is anticipated from 2 pm to 6 pm. With moderate precipitation of 0.16", most rainfall is expected at 5 pm.
The temperature will be between the lowest temperature of 69.8°F and the highest temperature of 78.8°F. The warmest part of the day will be from 1 pm to 5 pm.
The temperature is expected to be a few degrees higher than the average peak in July, which is 76.3°F. The temperature low is forecasted to be also consistent with the usual July value of 62.6°F.
July typically records the highest temperatures in Portsmouth, averaging 76.3°F for highs and 62.6°F for lows.
Updated: Jul 19, 2025 @ 05:33:46 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate