Colchester, CT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Colchester, CT in one place.
Mostly sunny. High near 81, with temperatures falling to around 78 in the afternoon. West wind around 5 mph.
Local Weather Overview
This forecast page for Colchester, 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 27, 2026 9:51 PM EDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Colchester, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 9:51 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Colchester
Sunday looks like the warmest upcoming period in Colchester at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Sunday at about 0 to 7 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 9:51 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 61. Southwest wind around 1 mph.
Sunny. High near 83, with temperatures falling to around 80 in the afternoon.
Partly cloudy, with a low around 67.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
81°F |
5 mph
W
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
61°F |
1 mph
SW
|
|
Sunday
Aug 30
|
Sunny
|
83°F |
0 to 7 mph
SW
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
67°F |
1 to 5 mph
SW
|
|
Monday
Aug 31
|
Partly Sunny then Chance Showers And Thunderstorms
|
83°F |
2 mph
W
|
|
Monday Night
Aug 31
|
Chance Showers And Thunderstorms
|
67°F |
1 mph
W
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
81°F |
0 to 5 mph
E
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
66°F |
3 mph
E
|
|
Wednesday
Sep 2
|
Chance Rain Showers
|
80°F |
2 to 7 mph
SE
|
|
Wednesday Night
Sep 2
|
Chance Rain Showers
|
65°F |
5 mph
N
|
|
Thursday
Sep 3
|
Chance Rain Showers
|
80°F |
2 to 7 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Colchester.
