Portsmouth, OH Weather Forecast
Local 7-day forecast
Areas Of Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Portsmouth, OH in one place.
Areas of smoke before 2pm, then areas of smoke and a chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind around 2 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Portsmouth, OH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 16, 2026 7:21 PM EDT.
The active forecast window currently covers Jul 17 to Jul 22, 2026 for Portsmouth, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 22, 2026
- Latest sync
- Jul 16, 2026 7:21 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Portsmouth
Friday looks like the warmest upcoming period in Portsmouth at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Tuesday at about 3 to 9 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 7:21 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of smoke and a chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Partly cloudy, with a low around 73. West wind around 2 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind 3 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Mostly clear, with a low around 64.
Sunny, with a high near 89.
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69.
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
A slight chance of rain showers before 8pm. Mostly clear, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Areas Of Smoke
|
92°F |
2 mph
S
|
|
Friday Night
Jul 17
|
Areas Of Smoke then Slight Chance Showers And Thunderstorms
|
73°F |
2 mph
W
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
88°F |
3 to 8 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
70°F |
2 to 7 mph
W
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms
|
87°F |
2 to 6 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
64°F |
1 to 6 mph
NE
|
|
Monday
Jul 20
|
Sunny
|
89°F |
3 mph
SE
|
|
Monday Night
Jul 20
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
3 mph
SW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms
|
90°F |
3 to 9 mph
W
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
67°F |
7 mph
NW
|
|
Wednesday
Jul 22
|
Slight Chance Showers And Thunderstorms
|
83°F |
5 to 8 mph
NW
|
|
Wednesday Night
Jul 22
|
Slight Chance Rain Showers then Mostly Clear
|
61°F |
2 to 8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portsmouth.
