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Over 250 million face dangerous heat dome into 4th of July weekend. Click for details. Chevron right
Where will there be storms into 4th of July weekend? Click for the forecast. Chevron right

Derby, CT

87°F
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Derby

Connecticut

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Derby, CT Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities
3
Extreme Heat Warning

July

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
28
82°
61°
29
86°
60°
30
A t-storm late this afternoon
88°
71°
1
Very hot
96°
74°
2
Hazy sun, very hot and humid
104°
76°
3
Partly sunny; very hot, humid
101°
75°
4
A heavy t-storm in the p.m.
94°
72°
5
Partly sunny and very warm
89°
69°
6
A stray afternoon t-storm
85°
65°
7
Mostly sunny and humid
84°
64°
8
Sunny and less humid
83°
63°
9
Mostly sunny
85°
65°
10
A little afternoon rain
85°
68°
11
Occasional afternoon rain
86°
66°
12
Periods of rain
83°
65°
13
Sunshine
82°
63°
14
Mostly sunny
77°
59°
15
Clouds and sun
76°
59°
16
Sunny
78°
61°
17
Sunny
78°
61°
18
Sunny
79°
62°
19
Partly sunny
78°
64°
20
T-storms in the afternoon
79°
66°
21
Mostly cloudy and humid
78°
67°
22
A shower and thunderstorm
84°
67°
23
A t-storm around in the p.m.
80°
66°
24
Mostly sunny and humid
81°
67°
25
Humid with some sun
84°
66°
26
Sunshine and humid
85°
68°
27
Sunshine and humid
85°
68°
28
Partly sunny and humid
84°
67°
29
A thunderstorm in spots
84°
67°
30
Mostly sunny and less humid
83°
64°
31
Sunshine and a few clouds
78°
61°
1
Cloudy
77°
61°

Temperature Graph

°F
110° 98° 86° 74° 62° Jul
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

July Weather in Derby

Derby's July 2026 forecast shows daily high temperatures ranging from 76° to 104°, with overnight lows between 59° and 76°. The average high for July is 84° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Derby. See also: August | September | October.

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