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Dow, IL

77°F
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Dow, IL 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
Wind 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
A couple of morning t-storms
83°
57°
31
Mostly cloudy
81°
62°
1
Mostly sunny
83°
63°
2
Intervals of bright sunshine
81°
60°
3
Couple of thunderstorms
80°
57°
4
Less humid with some sun
80°
64°
5
A couple of morning showers
82°
63°
6
Humid with a t-storm in spots
85°
62°
7
A couple of t-storms; humid
85°
62°
8
Couple of thunderstorms
84°
61°
9
A couple of t-storms; humid
84°
60°
10
Humid with a t-storm or two
83°
61°
11
Couple of thunderstorms
83°
61°
12
Humid with clouds and sun
85°
61°
13
Warm with plenty of sun
86°
59°
14
Sunshine and some clouds
77°
51°
15
Mostly cloudy, a little rain
74°
51°
16
Hist. Avg.
79°
55°
17
Hist. Avg.
79°
54°
18
Hist. Avg.
79°
54°
19
Hist. Avg.
78°
53°
20
Hist. Avg.
78°
53°
21
Hist. Avg.
78°
53°
22
Hist. Avg.
77°
52°
23
Hist. Avg.
77°
52°
24
Hist. Avg.
77°
51°
25
Hist. Avg.
76°
51°
26
Hist. Avg.
76°
51°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
75°
50°
29
Hist. Avg.
75°
49°
30
Hist. Avg.
74°
49°
1
Hist. Avg.
74°
49°
2
Hist. Avg.
74°
48°
3
Hist. Avg.
73°
48°

Temperature Graph

°F
90° 80° 70° 60° 50° Sep
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
*Temporarily Unavailable

September Weather in Dow

Dow's September 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 51° and 64°. The average high for September is 82° with an average low of 60°. 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 Dow. See also: October | November | December.

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