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Dover International Speedway, DE

77°F
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Dover International Speedway

Delaware

77°
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Dover International Speedway, DE 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
Heat Advisory

September

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
30
88°
66°
31
83°
73°
1
92°
72°
2
Not as warm but humid
81°
73°
3
Humid; an afternoon t-storm
93°
73°
4
Some sun, a t-storm; humid
90°
67°
5
Partly sunny and less humid
84°
64°
6
Some sun, then clouds
79°
60°
7
Sunshine and nice
79°
64°
8
Times of clouds and sun
84°
67°
9
Sunny spells
84°
67°
10
Mostly sunny and very warm
88°
66°
11
Mostly cloudy and less humid
84°
63°
12
Mostly sunny
80°
66°
13
A little afternoon rain
82°
65°
14
A little afternoon rain
81°
64°
15
Mainly cloudy
79°
60°
16
A shower and thunderstorm
77°
64°
17
Decreasing clouds
75°
60°
18
Partly sunny
74°
57°
19
Mostly sunny
78°
58°
20
Partly sunny
81°
62°
21
Decreasing clouds
79°
62°
22
Humid; afternoon t-storms
80°
63°
23
Intervals of clouds and sun
76°
62°
24
Sunny
77°
60°
25
Sunshine and a few clouds
76°
61°
26
Showers around in the p.m.
79°
61°
27
A shower and thunderstorm
79°
60°
28
Mostly sunny and less humid
78°
57°
29
Plenty of sunshine
70°
53°
30
Sunny
73°
57°
1
Sunshine and a few clouds
72°
55°
2
Rain
70°
56°
3
Mostly sunny
68°
53°

Temperature Graph

°F
100° 90° 80° 70° 60° Sep
Today 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
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in Dover International Speedway

Dover International Speedway's September 2026 forecast shows daily high temperatures ranging from 68° to 93°, with overnight lows between 53° and 73°. The average high for September is 79° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Dover International Speedway. See also: October | November | December.

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World North America United States Delaware Dover International Speedway

Weather Near Dover International Speedway:

  • Dover, DE
  • Philadelphia, PA
  • Trenton, NJ
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