Updated: December 18, 2017 5:25 am
Next update: December 18, 2017 4:25 pm

WXSIM Forecast for: O'Fallon

Today


Tonight


Tuesday


Tuesday
night


Wednesday


Wednesday
night


Thursday


Thursday
night


Friday











8
7
7
5
7
7
9
12
11

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Today
8
  Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Unusually mild.
Tonight
7
  Clear. Relatively mild.
Tuesday
7
  Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Unusually mild.
Tuesday night
5
  Partly to mostly cloudy. Relatively mild.
Wednesday
7
  Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Relatively mild.
Wednesday night
7
  Clear.
Thursday
9
  Sunny in the morning, becoming partly to mostly sunny in the afternoon. Unusually mild.
Thursday night
12
  Fair to partly cloudy.
Friday
11
  Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the afternoon. Breezy. Wind chill ranging from 24 to 29.
Friday night
7
  Clear in the evening, becoming partly cloudy after midnight. Patchy light fog.
Saturday
9
  Mostly sunny in the morning, becoming sunny in the afternoon. Patchy light fog in the morning. Wind chill ranging from 14 to 23.
Saturday night
7
  Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. Wind chill ranging from 11 to 20.
Sunday
10
  Cloudy in the morning, becoming mostly cloudy in the afternoon. Wind chill ranging from 13 to 18.
Sunday night
12
  Fair in the evening, becoming mostly clear after midnight. Patchy light fog in the evening. Wind chill ranging from 8 to 18.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 07:16     16:44    Daylength: 9:27 Today
09:00
7
  30.12 in UV
UV Index: 1
Mostly cloudy.
12:00
9
  30.09 in UV
UV Index: 1
Mostly cloudy.
15:00
9
  30.04 in   Sunny.
18:00
6
  30.05 in   Clear.
21:00
7
  30.05 in   Clear.
 07:16     16:44    Daylength: 9:27 Tomorrow
00:00
9
  30.05 in   Clear.
03:00
8
  30.05 in   Clear.
06:00
7
  30.05 in   Clear.
09:00
8
  30.09 in UV
UV Index: 1
Sunny.
12:00
8
  30.06 in UV
UV Index: 1
Sunny.
15:00
6
  30.03 in   Sunny.
18:00
3
  30.08 in   Clear.
21:00
4
  30.10 in   Clear.
 07:17     16:44    Daylength: 9:27 Wednesday 20 Dec
00:00
7
  30.10 in   Clear.
03:00
7
  30.07 in   Clear.
06:00
7
  30.05 in   Clear.
09:00
7
  30.08 in UV
UV Index: 1
Sunny.
12:00
7
  30.04 in UV
UV Index: 1
Sunny.
15:00
6
  29.99 in   Sunny.
18:00
5
  30.00 in   Clear.
21:00
7
  30.01 in   Clear.
 07:17     16:45    Daylength: 9:27 Thursday 21 Dec
00:00
7
  29.99 in   Clear.
03:00
7
  29.95 in   Mostly clear.
06:00
8
  29.92 in   Mostly clear.
09:00
9
  29.91 in UV
UV Index: 2
Mostly sunny.
12:00
11
  29.81 in UV
UV Index: 2
Partly cloudy.
15:00
11
  29.71 in   Mostly cloudy.
18:00
6
  29.70 in   Mostly cloudy.
21:00
7
  29.69 in   Mostly clear.
 07:18     16:46    Daylength: 9:27 Friday 22 Dec
00:00
11
  29.74 in   Partly cloudy.
03:00
13
  29.84 in   Partly cloudy.
06:00
12
  29.94 in   Mostly cloudy.
09:00
12
  30.02 in UV
UV Index: 1
Mostly cloudy.
12:00
12
  30.03 in UV
UV Index: 1
Mostly cloudy.
15:00
10
  30.03 in   Sunny.
Light fog.
18:00
8
  30.11 in   Clear.
Moderate fog.
21:00
7
  30.17 in   Clear.
Moderate fog.
 07:18     16:46    Daylength: 9:27 Saturday 23 Dec
00:00
6
  30.23 in   Clear.
Moderate fog.
03:00
6
  30.27 in   Clear.
Light fog.
06:00
6
  30.30 in   Clear.
Light fog.
09:00
9
  30.38 in UV
UV Index: 1
Sunny.
12:00
10
  30.39 in UV
UV Index: 1
Sunny.
15:00
9
  30.39 in   Sunny.
Light fog.
18:00
6
  30.47 in   Clear.
Light fog.
21:00
11
  30.53 in   Clear.
 07:18     16:47    Daylength: 9:28 Sunday 24 Dec
00:00
9
  30.56 in   Clear.
Light fog.
03:00
4
  30.54 in   Mostly cloudy.
Light fog.
06:00
5
  30.53 in   Mostly cloudy.
09:00
8
  30.55 in UV
UV Index: 1
Mostly cloudy.
12:00
10
  30.49 in UV
UV Index: 1
Mostly cloudy.
15:00
11
  30.41 in   Mostly cloudy.
18:00
4
  30.41 in   Mostly clear.
Light fog.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 07:16     16:44    Daylength: 9:27 Today
07:00
5
  0% 40.7° 30.09 in   39% 15 miles
08:00
6
  0% 41.4° 30.11 in   53% 15 miles
09:00
7
  0% 42.3° 30.12 in UV
UV Index: 1
60% 15 miles
10:00
8
  0% 42.8° 30.12 in UV
UV Index: 1
58% 15 miles
11:00
8
  0% 43.0° 30.11 in UV
UV Index: 1
55% 15 miles
12:00
9
  0% 42.8° 30.09 in UV
UV Index: 1
52% 15 miles
13:00
9
  0% 42.7° 30.07 in UV
UV Index: 1
36% 15 miles
14:00
9
  0% 42.5° 30.05 in UV
UV Index: 1
19% 15 miles
15:00
9
  0% 42.3° 30.04 in   2% 16 miles
16:00
8
  0% 42.0° 30.04 in   0% 16 miles
17:00
7
  0% 41.5° 30.05 in   0% 15 miles
18:00
6
  0% 41.5° 30.05 in   0% 15 miles
19:00
5
  0% 41.6° 30.06 in   0% 15 miles
20:00
6
  0% 41.5° 30.06 in   0% 15 miles
21:00
7
  0% 41.3° 30.05 in   0% 15 miles
22:00
8
  0% 41.2° 30.05 in   0% 15 miles
23:00
8
  0% 40.9° 30.05 in   0% 15 miles
 07:16     16:44    Daylength: 9:27 Tomorrow
00:00
9
  0% 40.5° 30.05 in   0% 15 miles
01:00
8
  0% 40.1° 30.05 in   0% 16 miles
02:00
8
  0% 39.8° 30.05 in   0% 16 miles
03:00
8
  0% 39.7° 30.05 in   0% 16 miles
04:00
8
  0% 39.7° 30.04 in   0% 16 miles
05:00
8
  0% 39.9° 30.04 in   0% 16 miles
06:00
7
  0% 40.1° 30.05 in   0% 16 miles
07:00
7
  0% 40.6° 30.06 in   0% 16 miles
08:00
7
  0% 41.8° 30.08 in   0% 16 miles
09:00
8
  0% 43.8° 30.09 in UV
UV Index: 1
0% 16 miles
10:00
8
  0% 45.1° 30.09 in UV
UV Index: 1
0% 16 miles
11:00
8
  0% 46.1° 30.08 in UV
UV Index: 1
0% 16 miles
12:00
8
  0% 46.4° 30.06 in UV
UV Index: 1
0% 16 miles
13:00
7
  0% 46.2° 30.04 in UV
UV Index: 1
0% 16 miles
14:00
7
  0% 45.6° 30.03 in UV
UV Index: 1
0% 15 miles
15:00
6
  0% 44.7° 30.03 in   0% 15 miles
16:00
5
  0% 43.8° 30.04 in   0% 15 miles
17:00
4
  0% 42.6° 30.06 in   0% 15 miles
18:00
3
  0% 41.7° 30.08 in   0% 15 miles
19:00
3
  0% 40.7° 30.09 in   0% 15 miles
20:00
3
  0% 39.7° 30.10 in   0% 15 miles
21:00
4
  0% 38.6° 30.10 in   0% 15 miles
22:00
5
  0% 37.5° 30.10 in   0% 15 miles
23:00
6
  0% 36.3° 30.10 in   0% 15 miles
 07:17     16:44    Daylength: 9:27 Wednesday 20 Dec
00:00
7
  0% 35.1° 30.10 in   0% 15 miles
01:00
7
  0% 33.8° 30.09 in   0% 15 miles
02:00
7
  0% 33.0° 30.08 in   0% 16 miles
03:00
7
  0% 32.1° 30.07 in   0% 16 miles
04:00
7
  0% 31.1° 30.06 in   0% 16 miles
05:00
7
  0% 29.9° 30.05 in   0% 16 miles
06:00
7
  0% 28.5° 30.05 in   0% 16 miles
Move the mouse over the values for info.

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