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December weather forecast in O'Fallon
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
30
+7
+4
30 November, sun
+7
+4
Feels like
+3
751 mmHg
61%
5.3
m/s
W
30 November, Sunday. day, 7°; night, 4°; clear
1
+7
+4
1 December, mon
+7
+4
Feels like
+3
750 mmHg
69%
5.3
m/s
W
1 December, Monday. day, 7°; night, 4°; partly cloudy
2
+9
+5
2 December, tue
+9
+5
Feels like
+5
753 mmHg
68%
5.4
m/s
S
2 December, Tuesday. day, 9°; night, 5°; clear
3
+9
+6
3 December, wed
+9
+6
Feels like
+5
752 mmHg
74%
6.8
m/s
S
3 December, Wednesday. day, 9°; night, 6°; clear
4
+3
+3
4 December, thu
+3
+3
Feels like
−2
756 mmHg
66%
5.6
m/s
NW
4 December, Thursday. day, 3°; night, 3°; partly cloudy
5
+3
0
5 December, fri
+3
0
Feels like
−2
757 mmHg
66%
5
m/s
W
5 December, Friday. day, 3°; night, 0°; partly cloudy
6
+2
0
6 December, sat
+2
0
Feels like
−3
755 mmHg
68%
5.5
m/s
W
6 December, Saturday. day, 2°; night, 0°; partly cloudy
7
+4
0
7 December, sun
+4
0
Feels like
0
752 mmHg
66%
4.5
m/s
S
7 December, Sunday. day, 4°; night, 0°; rain
8
+3
+2
8 December, mon
+3
+2
Feels like
−3
752 mmHg
68%
6.4
m/s
W
8 December, Monday. day, 3°; night, 2°; partly cloudy
9
+5
0
9 December, tue
+5
0
Feels like
0
753 mmHg
62%
5.5
m/s
SW
9 December, Tuesday. day, 5°; night, 0°; partly cloudy
10
+4
+1
10 December, wed
+4
+1
Feels like
−1
754 mmHg
62%
6.8
m/s
SW
10 December, Wednesday. day, 4°; night, 1°; clear
11
+5
0
11 December, thu
+5
0
Feels like
0
753 mmHg
62%
6
m/s
SW
11 December, Thursday. day, 5°; night, 0°; rain
12
+5
+3
12 December, fri
+5
+3
Feels like
+1
752 mmHg
70%
6
m/s
SW
12 December, Friday. day, 5°; night, 3°; partly cloudy
13
+6
+3
13 December, sat
+6
+3
Feels like
+1
750 mmHg
70%
6.4
m/s
S
13 December, Saturday. day, 6°; night, 3°; rain
14
+6
+3
14 December, sun
+6
+3
Feels like
+1
751 mmHg
67%
7.1
m/s
S
14 December, Sunday. day, 6°; night, 3°; clear
15
+3
+1
15 December, mon
+3
+1
Feels like
−3
753 mmHg
68%
6
m/s
W
15 December, Monday. day, 3°; night, 1°; partly cloudy
16
+3
−1
16 December, tue
+3
−1
Feels like
−2
753 mmHg
69%
5
m/s
SW
16 December, Tuesday. day, 3°; night, -1°; clear
17
+4
+1
17 December, wed
+4
+1
Feels like
0
751 mmHg
75%
4.6
m/s
W
17 December, Wednesday. day, 4°; night, 1°; partly cloudy
18
+4
+1
18 December, thu
+4
+1
Feels like
0
753 mmHg
73%
5.6
m/s
SW
18 December, Thursday. day, 4°; night, 1°; overcast
19
+6
+2
19 December, fri
+6
+2
Feels like
+2
751 mmHg
74%
5.1
m/s
SE
19 December, Friday. day, 6°; night, 2°; rain
20
+7
+4
20 December, sat
+7
+4
Feels like
+2
748 mmHg
80%
6.1
m/s
SW
20 December, Saturday. day, 7°; night, 4°; overcast
21
+2
+2
21 December, sun
+2
+2
Feels like
−3
751 mmHg
76%
6.8
m/s
W
21 December, Sunday. day, 2°; night, 2°; clear
22
+4
0
22 December, mon
+4
0
Feels like
−1
754 mmHg
69%
5.3
m/s
SW
22 December, Monday. day, 4°; night, 0°; clear
23
+3
0
23 December, tue
+3
0
Feels like
−2
752 mmHg
74%
6
m/s
S
23 December, Tuesday. day, 3°; night, 0°; overcast
24
+3
+2
24 December, wed
+3
+2
Feels like
−2
753 mmHg
77%
6
m/s
W
24 December, Wednesday. day, 3°; night, 2°; overcast
25
+3
−1
25 December, thu
+3
−1
Feels like
−2
754 mmHg
79%
6.5
m/s
SE
25 December, Thursday. day, 3°; night, -1°; rain
26
+4
+1
26 December, fri
+4
+1
Feels like
−1
754 mmHg
80%
6.5
m/s
W
26 December, Friday. day, 4°; night, 1°; partly cloudy
27
+5
0
27 December, sat
+5
0
Feels like
0
752 mmHg
73%
5.4
m/s
SW
27 December, Saturday. day, 5°; night, 0°; partly cloudy
28
+3
0
28 December, sun
+3
0
Feels like
−2
752 mmHg
75%
5.6
m/s
SW
28 December, Sunday. day, 3°; night, 0°; overcast
29
+3
+1
29 December, mon
+3
+1
Feels like
−4
754 mmHg
67%
6.8
m/s
W
29 December, Monday. day, 3°; night, 1°; partly cloudy
30
+8
0
30 December, tue
+8
0
Feels like
+3
754 mmHg
66%
6.4
m/s
SW
30 December, Tuesday. day, 8°; night, 0°; partly cloudy
31
+8
0
31 December, wed
+8
0
Feels like
+3
754 mmHg
66%
6.4
m/s
SW
31 December, Wednesday. day, 8°; night, 0°; clear
1
+1
−2
1 January, thu
+1
−2
Feels like
−5
755 mmHg
63%
7
m/s
W
1 January, Thursday. day, 1°; night, -2°; clear
2
−1
−4
2 January, fri
−1
−4
Feels like
−6
757 mmHg
73%
5.6
m/s
W
2 January, Friday. day, -1°; night, -4°; partly cloudy
3
+2
−3
3 January, sat
+2
−3
Feels like
−3
755 mmHg
75%
5
m/s
S
3 January, Saturday. day, 2°; night, -3°; clear
Average data for 10 years
O'Fallon December
8
sunny days
5
days with precipitation
18
cloudy days
8 sunny days; 5 days with precipitation; 18 cloudy days;
70
%
air humidity
4.1
m/s
Wind
SW
62
mm of precipitation
(8% of annual average)
air humidity 70%; 62 millimeters of precipitation (8% of annual average); Wind south-westerly 4.1 Meters per second
Weather graphs for December
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
S
S
NW
W
W
S
W
SW
SW
SW
SW
S
S
W
SW
W
SW
SE
SW
W
SW
S
W
SE
W
SW
SW
W
SW
SW
1
Average data for 10 years
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
Daytime temperature
Night-time temperature
Cities near you
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Kansas City
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Washington
Warsaw
Naperville
Cities with similar weather in December
Prague
Vienna
Munich
Sofia
Hévíz
Krakow
Dresden
Edinburgh
Salzburg
