Weather for Norwalk, Connecticut
Current Weather
Humidity: 82%
Feels Like: 79.9°F
Wind: NNW 9.4 mph
Wind Gusts: 14.5 mph
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Mon
H: 83°F
L: 67°F
Tue
H: 74°F
L: 63°F
Wed
H: 78°F
L: 65°F
Thu
H: 88°F
L: 72°F
Fri
H: 96°F
L: 75°F
Air Quality
Nitrogen Dioxide: 7.22 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 88 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:21 PM
Daylight: 14 hrs 41 mins
Moon Transit: 9:54 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:24 AM - 11:54 AM
Minor Periods
5:36 PM - 7:06 PM1:18 AM - 2:48 AM
Action Rating: 2 out of 5
Severe Thunderstorm Watch issued July 20 at 4:11PM EDT until July 20 at 9:00PM EDT by NWS Upton NY
Effective: Sun July 20, 2025, 4:11 PM
Expires: Sun July 20, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 530 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES IN SOUTHERN CONNECTICUT FAIRFIELD MIDDLESEX NEW HAVEN NEW LONDON
Severe Thunderstorm Watch issued July 20 at 4:11PM EDT until July 20 at 9:00PM EDT by NWS Upton NY
Effective: Sun July 20, 2025, 4:11 PM
Expires: Sun July 20, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 530 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES IN SOUTHERN CONNECTICUT FAIRFIELD MIDDLESEX NEW HAVEN NEW LONDON
Severe Thunderstorm Watch issued July 20 at 6:11PM EDT until July 20 at 9:00PM EDT by NWS Albany NY
Effective: Sun July 20, 2025, 6:11 PM
Expires: Sun July 20, 2025, 9:00 PM
SEVERE THUNDERSTORM WATCH 530 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 1 COUNTY IN NORTHWESTERN CONNECTICUT LITCHFIELD THIS INCLUDES THE CITIES OF TORRINGTON.
Special Weather Statement issued July 20 at 8:02PM EDT by NWS Upton NY
Effective: Sun July 20, 2025, 8:02 PM
Expires: Sun July 20, 2025, 8:45 PM
At 802 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms near Chester, moving southeast at 20 mph. HAZARD...Winds in excess of 30 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Clinton, Old Saybrook, Chester, Waterford, East Lyme, East Haddam, Haddam, Old Lyme, Westbrook, Killingworth, Lyme, North Lyme, Madison, Essex, and Deep River.
If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southern Connecticut.
Severe Thunderstorm Watch issued July 20 at 4:11PM EDT until July 20 at 9:00PM EDT by NWS Upton NY
Effective: Sun July 20, 2025, 4:11 PM
Expires: Sun July 20, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 530 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES IN SOUTHERN CONNECTICUT FAIRFIELD MIDDLESEX NEW HAVEN NEW LONDON
Weather Forecast
Average Temperature: 74.9°F
Average Humidity: 64%
Wind: 11.4 mph
UV Index: 2.3
Air Quality
Nitrogen Dioxide: 7.27 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 90.32 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:21 PM
Daylight: 14 hrs 41 mins
Moon Transit: 9:54 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:24 AM - 11:54 AM
Minor Periods
5:36 PM - 7:06 PM1:18 AM - 2:48 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 68.7°F
Average Humidity: 59%
Wind: 12.1 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 9.11 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 71.48 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:20 PM
Daylight: 14 hrs 40 mins
Moon Transit: 10:57 AM
Moonset: 7:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%
Best Times for Fishing or Hunting
Major Periods
12:14 AM - 2:44 AM10:27 AM - 12:57 AM
Minor Periods
6:39 PM - 8:09 PM2:15 AM - 3:45 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 71.7°F
Average Humidity: 65%
Wind: 11.2 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 31.07 μg/m3
Sulphur Dioxide: 7.26 μg/m3
Ozone: 102.72 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:19 PM
Daylight: 14 hrs 38 mins
Moon Transit: 12:00 AM
Moonset: 8:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%
Best Times for Fishing or Hunting
Major Periods
1:17 AM - 3:47 AM11:30 AM - 2:00 PM
Minor Periods
7:30 PM - 9:00 PM3:22 AM - 4:52 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 78.5°F
Average Humidity: 66%
Wind: 14.8 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 34.27 μg/m3
Sulphur Dioxide: 10.82 μg/m3
Ozone: 83.31 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:18 PM
Daylight: 14 hrs 36 mins
Moon Transit: 12:58 AM
Moonset: 8:40 PM
Moon Phase: New
Moon Illumination: 0.4%
Best Times for Fishing or Hunting
Major Periods
2:18 AM - 4:48 AM12:28 AM - 2:58 PM
Minor Periods
8:10 PM - 9:40 PM4:36 AM - 6:06 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 79.7°F
Average Humidity: 71%
Wind: 12.3 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:17 PM
Daylight: 14 hrs 34 mins
Moon Transit: 1:52 PM
Moonset: 9:10 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
3:13 AM - 5:43 AM1:22 PM - 3:52 PM
Minor Periods
8:40 PM - 10:10 PM5:51 AM - 7:21 AM
Action Rating: 6 out of 5