Portland, TN Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portland, TN in one place.
Mostly sunny, with a high near 85. North wind 0 to 5 mph.
Local Weather Overview
This forecast page for Portland, TN 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: Aug 23, 2026 6:45 PM CDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Portland, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 6:45 PM CDT
- Forecast office
- OHX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Wednesday looks like the warmest upcoming period in Portland at 89 degrees F.
Monday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday at about 0 to 5 mph N.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 6:45 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- OHX
- Radar station
- KOHX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 61. Northeast wind 0 to 5 mph.
Sunny, with a high near 87. East northeast wind 0 to 5 mph.
Mostly clear, with a low around 64. East northeast wind 0 to 5 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 0 to 5 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. South southwest wind around 0 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. West southwest wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 67. Chance of precipitation is 30%.
Sunny, with a high near 88.
Mostly clear, with a low around 66.
Sunny, with a high near 89.
Mostly clear, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Mostly Sunny
|
85°F |
0 to 5 mph
N
|
|
Monday Night
Aug 24
|
Mostly Clear
|
61°F |
0 to 5 mph
NE
|
|
Tuesday
Aug 25
|
Sunny
|
87°F |
0 to 5 mph
ENE
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
64°F |
0 to 5 mph
ENE
|
|
Wednesday
Aug 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
S
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
68°F |
0 mph
|
|
Thursday
Aug 27
|
Chance Showers And Thunderstorms
|
88°F |
0 to 5 mph
WSW
|
|
Thursday Night
Aug 27
|
Chance Showers And Thunderstorms
|
67°F |
0 to 5 mph
NNW
|
|
Friday
Aug 28
|
Sunny
|
88°F |
0 to 5 mph
N
|
|
Friday Night
Aug 28
|
Mostly Clear
|
66°F |
0 to 5 mph
NE
|
|
Saturday
Aug 29
|
Sunny
|
89°F |
0 to 5 mph
NE
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
68°F |
0 to 5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.
