Weather WorldHaystack Mountain State Park, CT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Haystack Mountain State Park Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | |  |  |  | | | |  |  |
| Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of Showers | Showers | Chance of Showers | Partly Cloudy | Chance of Showers | Chance of Showers | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C |
| POP: 40% | POP: 90% | POP: 80% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 527 PM EDT Thu Oct 08 2026 
Haystack Mountain State Park Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Haystack Mountain State Park Weather Map
Haystack Mountain State Park Quick Facts
Haystack Mountain State Park Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 712 PM EDT Thu Oct 8 2026
Key Messages
1) Impactful weather is not expected through at least the first half of the weekend.
2) Increasing confidence for a period of beneficial rain Sunday into early Monday. No flooding is expected at this time.
3) A cold front will move across the region on Tuesday, followed by potentially the coolest air mass of the fall season thus far from mid to late next week.
Discussion
... KEY MESSAGE 1...
A few disturbances moving through a mean upper level trough in place across the Great Lakes and No...