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Following a nice start to the week, the Northeast will turn wet and chilly again. Get the forecast. Chevron right

Antioch, IL

44°F
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Antioch

Illinois

44°
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Antioch, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Monthly

Air Quality Health & Activities
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May

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
26
56°
37°
27
Rain and severe thunderstorms
69°
51°
28
Breezy in the morning
64°
48°
29
Times of clouds and sun
54°
38°
30
A couple of showers
53°
37°
1
Mostly cloudy and cold
48°
39°
2
More sun than clouds
56°
43°
3
Mostly sunny
63°
45°
4
Periods of rain
64°
49°
5
Sun and some clouds
62°
45°
6
A little rain in the morning
57°
44°
7
Strong morning t-storms; rain
59°
45°
8
Rain
60°
44°
9
Mostly cloudy with a shower
59°
46°
10
Cloudy
66°
45°
11
Rain becoming steadier
59°
48°
12
Mostly cloudy
61°
46°
13
Mostly cloudy
60°
42°
14
Some sun
60°
42°
15
Partly sunny
61°
43°
16
Sun and clouds
63°
47°
17
Some sunshine
64°
50°
18
Periods of rain
71°
54°
19
Plenty of sunshine
72°
49°
20
Increasing cloudiness
67°
48°
21
Partly sunny
64°
47°
22
Decreasing clouds
64°
47°
23
Increasing clouds
70°
55°
24
Morning rain; overcast
74°
56°
25
Sunny and less humid
74°
54°
26
Mostly sunny
69°
50°
27
Sunshine and some clouds
66°
49°
28
Plenty of sunshine
69°
56°
29
Increasing cloudiness
75°
57°
30
Mostly cloudy and warm
77°
57°
31
Mostly cloudy and warm
77°
58°
1
Warm with plenty of sunshine
76°
58°
2
Sunshine and warm
79°
59°
3
Mostly sunny and warm
79°
59°
4
Partly sunny and less humid
78°
54°
5
Sun and some clouds
69°
53°
6
Sunshine and a few clouds
72°
59°

Temperature Graph

°F
80° 70° 60° 50° 40° May
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

May Weather in Antioch

Antioch's May 2026 forecast shows daily high temperatures ranging from 48° to 79°, with overnight lows between 37° and 59°. The average high for May is 66° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Antioch. See also: June | July | August.

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July 2026

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Weather Near Antioch:

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  • Joliet, IL
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