Portland, CT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portland, CT in one place.
Sunny, with a high near 77. Northwest wind 2 to 7 mph.
Local Weather Overview
This forecast page for Portland, CT 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 28, 2026 7:52 PM EDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Portland, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 7:52 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Monday looks like the warmest upcoming period in Portland at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 2 to 8 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 7:52 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
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 58. Southwest wind 0 to 3 mph.
A slight chance of rain showers after 2pm. Mostly sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southwest wind 2 to 8 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers. Partly sunny, with a high near 81.
A chance of rain showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.
A chance of rain showers before 2am. Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
77°F |
2 to 7 mph
NW
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
58°F |
0 to 3 mph
SW
|
|
Sunday
Aug 30
|
Mostly Sunny then Slight Chance Rain Showers
|
80°F |
2 to 8 mph
SW
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
66°F |
2 to 7 mph
W
|
|
Monday
Aug 31
|
Slight Chance Rain Showers
|
81°F |
3 mph
NW
|
|
Monday Night
Aug 31
|
Chance Rain Showers
|
64°F |
2 mph
S
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
78°F |
1 to 7 mph
SE
|
|
Tuesday Night
Sep 1
|
Showers And Thunderstorms Likely
|
66°F |
6 mph
SE
|
|
Wednesday
Sep 2
|
Showers And Thunderstorms Likely
|
80°F |
3 to 7 mph
S
|
|
Wednesday Night
Sep 2
|
Chance Showers And Thunderstorms
|
66°F |
5 mph
SW
|
|
Thursday
Sep 3
|
Chance Rain Showers
|
81°F |
3 to 7 mph
W
|
|
Thursday Night
Sep 3
|
Chance Rain Showers
|
63°F |
6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.