Harwinton, CT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Harwinton, CT in one place.
Sunny, with a high near 84. Southwest wind 3 to 7 mph.
Local Weather Overview
This forecast page for Harwinton, 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: Jun 8, 2026 4:17 PM EDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Harwinton, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 4:17 PM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Harwinton
Thursday looks like the warmest upcoming period in Harwinton at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Wednesday at about 3 to 8 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 4:17 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 61. Southwest wind 2 to 6 mph.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 82. South wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Mostly sunny, with a high near 89.
Mostly clear, with a low around 63.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 89.
A chance of rain showers. Mostly cloudy, with a low around 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Sunny
|
84°F |
3 to 7 mph
SW
|
|
Tuesday Night
Jun 9
|
Partly Cloudy
|
61°F |
2 to 6 mph
SW
|
|
Wednesday
Jun 10
|
Showers And Thunderstorms Likely
|
82°F |
3 to 8 mph
S
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
65°F |
2 to 6 mph
SW
|
|
Thursday
Jun 11
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
2 to 7 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
66°F |
1 to 5 mph
W
|
|
Friday
Jun 12
|
Partly Sunny then Chance Showers And Thunderstorms
|
90°F |
1 to 7 mph
SW
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
64°F |
3 to 7 mph
W
|
|
Saturday
Jun 13
|
Mostly Sunny
|
89°F |
6 mph
NW
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
63°F |
1 to 5 mph
NW
|
|
Sunday
Jun 14
|
Mostly Sunny then Slight Chance Rain Showers
|
89°F |
1 to 7 mph
W
|
|
Sunday Night
Jun 14
|
Chance Rain Showers
|
65°F |
6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harwinton.
