Portsmouth, OH Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Portsmouth, OH in one place.
Rain showers after 7am. Partly sunny, with a high near 75. West wind 8 to 12 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. 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: Oct 15, 2026 2:31 AM EDT.
The active forecast window currently covers Oct 16 to Oct 21, 2026 for Portsmouth, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 2:31 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Portsmouth
Friday looks like the warmest upcoming period in Portsmouth at 75 degrees F.
Saturday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Friday at about 8 to 12 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 2:31 AM 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
Rain showers. Mostly cloudy, with a low around 42. Northwest wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 56. Chance of precipitation is 20%.
Clear, with a low around 35.
Sunny, with a high near 63.
Clear, with a low around 36.
Sunny, with a high near 68.
Partly cloudy, with a low around 42.
Mostly sunny, with a high near 69.
Mostly clear, with a low around 43.
Sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Rain Showers
|
75°F |
8 to 12 mph
W
|
|
Friday Night
Oct 16
|
Rain Showers
|
42°F |
7 to 10 mph
NW
|
|
Saturday
Oct 17
|
Slight Chance Rain Showers then Mostly Sunny
|
56°F |
9 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
35°F |
1 to 6 mph
NE
|
|
Sunday
Oct 18
|
Sunny
|
63°F |
3 mph
E
|
|
Sunday Night
Oct 18
|
Clear
|
36°F |
2 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
68°F |
2 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
42°F |
1 mph
E
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
69°F |
2 mph
NE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
43°F |
2 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
72°F |
2 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portsmouth.
