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Barrington, IL

70°F
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Barrington

Illinois

70°
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Barrington, 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

October

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
27
A bit of morning rain
71°
55°
28
Sunshine
72°
55°
29
Rain in the afternoon
68°
47°
30
Rain becoming steadier; humid
71°
54°
1
Mostly sunny
72°
53°
2
Cloudy
65°
52°
3
Cloudy with a stray shower
62°
52°
4
Rain
65°
51°
5
Occasional afternoon rain
65°
51°
6
Sun, then clouds; less humid
68°
50°
7
Rather cloudy
62°
47°
8
Sunny to partly cloudy
59°
40°
9
Partly sunny
56°
39°
10
Partly sunny
56°
40°
11
Increasing cloudiness
57°
42°
12
A blend of sun and clouds
63°
49°
13
Turning cloudy
67°
48°
14
Afternoon rain
66°
49°
15
Mostly sunny
67°
48°
16
Cooler; a little morning rain
59°
46°
17
Windy with rain tapering off
55°
37°
18
Plenty of sunshine
53°
35°
19
Cloudy
53°
39°
20
Mostly sunny
55°
46°
21
Periods of rain
62°
47°
22
A blend of sun and clouds
60°
46°
23
Mostly cloudy
52°
45°
24
Cloudy
57°
45°
25
Cloudy with a little rain
60°
46°
26
Rain in the morning; cloudy
60°
44°
27
Cloudy most of the time
53°
37°
28
Sunny
49°
37°
29
Times of clouds and sun
55°
42°
30
Partly sunny
54°
30°
31
Clouds and sun
49°
30°

Temperature Graph

°F
80° 68° 56° 44° 32° Oct
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

October Weather in Barrington

Barrington's October 2026 forecast shows daily high temperatures ranging from 49° to 72°, with overnight lows between 30° and 55°. The average high for October is 61° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Barrington. See also: November | December | January.

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