Updated: December 18, 2018 4:25 pm
Next update: December 19, 2018 5:25 am

WXSIM Forecast for: O'Fallon

Tonight


Wednesday


Wednesday
night


Thursday


Thursday
night


Friday


Friday
night


Saturday


Saturday
night











5
8
6
12
12
9
3
8
5

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Tonight
5
  Mostly clear in the evening, becoming fair to partly cloudy after midnight.
Wednesday
8
  Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Relatively mild.
Wednesday night
6
<0.1 in
PoP: 20%
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain. Relatively mild. Precipitation less than a tenth of an inch.
Thursday
12
<0.1 in
PoP: 30%
Dense overcast. Patchy light fog in the morning. A chance of rain. Relatively mild. Precipitation less than a tenth of an inch.
Thursday night
12
  Cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Breezy. Wind chill ranging from 22 to 37.
Friday
9
  Partly to mostly sunny in the morning, becoming sunny in the afternoon. Patchy light fog in the morning.
Friday night
3
  Clear in the evening, becoming partly to mostly cloudy after midnight.
Saturday
8
  Partly cloudy in the morning, becoming sunny in the afternoon. Relatively mild.
Saturday night
5
  Clear.
Sunday
8
  Sunny.
Sunday night
5
  Clear.
Monday
8
  Sunny. Relatively mild.
Monday night
6
  Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight.
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 Tomorrow
00:00
6
  30.05 in   Clear.
03:00
6
  30.02 in   Clear.
06:00
6
  29.99 in   Clear.
09:00
7
  29.98 in UV
UV Index: 1
Sunny.
12:00
9
  29.90 in UV
UV Index: 1
Sunny.
15:00
9
  29.80 in   Sunny.
18:00
7
  29.79 in   Partly cloudy.
21:00
6
  29.76 in   Mostly cloudy.
 07:17     16:44    Daylength: 9:27 Thursday 20 Dec
00:00
6
0.01 in 29.73 in   Cloudy.
Light rain.
03:00
4
0.02 in 29.72 in   Cloudy.
Light rain.
06:00
1
0.01 in 29.73 in   Cloudy.
Light rain.
09:00
4
  29.78 in   Cloudy.
12:00
9
  29.78 in   Cloudy.
15:00
13
  29.79 in   Cloudy.
18:00
14
  29.86 in   Cloudy.
21:00
13
  29.90 in   Cloudy.
 07:17     16:45    Daylength: 9:27 Friday 21 Dec
00:00
12
  29.90 in   Mostly cloudy.
Light fog.
03:00
12
  29.90 in   Partly cloudy.
Light fog.
06:00
11
  29.92 in   Partly cloudy.
Moderate fog.
09:00
9
  29.97 in UV
UV Index: 1
Mostly sunny.
Light fog.
12:00
9
  29.94 in UV
UV Index: 1
Mostly sunny.
15:00
8
  29.91 in   Sunny.
18:00
3
  29.95 in   Clear.
21:00
2
  29.97 in   Clear.
 07:18     16:45    Daylength: 9:27 Saturday 22 Dec
00:00
3
  29.97 in   Clear.
03:00
3
  29.97 in   Clear.
06:00
6
  29.98 in   Clear.
09:00
10
  30.03 in UV
UV Index: 2
Sunny.
12:00
9
  30.02 in UV
UV Index: 2
Sunny.
15:00
8
  30.02 in   Sunny.
18:00
5
  30.11 in   Clear.
21:00
5
  30.19 in   Clear.
 07:18     16:46    Daylength: 9:27 Sunday 23 Dec
00:00
5
  30.23 in   Clear.
03:00
5
  30.25 in   Clear.
06:00
5
  30.28 in   Clear.
09:00
7
  30.34 in UV
UV Index: 1
Sunny.
12:00
11
  30.31 in UV
UV Index: 2
Sunny.
15:00
8
  30.28 in   Sunny.
18:00
4
  30.33 in   Clear.
21:00
5
  30.34 in   Clear.
 07:18     16:47    Daylength: 9:28 Monday 24 Dec
00:00
6
  30.32 in   Clear.
03:00
6
  30.32 in   Clear.
06:00
6
  30.30 in   Clear.
09:00
8
  30.31 in UV
UV Index: 2
Sunny.
12:00
9
  30.23 in UV
UV Index: 2
Sunny.
15:00
9
  30.14 in   Sunny.
18:00
7
  30.13 in   Clear.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 07:16     16:43    Daylength: 9:27 Today
22:00
5
  0% 29.9° 30.07 in   0% 416 miles
23:00
6
  0% 29.9° 30.06 in   0% 416 miles
 07:16     16:44    Daylength: 9:27 Tomorrow
00:00
6
  0% 30.0° 30.05 in   0% 416 miles
01:00
6
  0% 30.1° 30.05 in   0% 416 miles
02:00
6
  0% 30.3° 30.03 in   0% 416 miles
03:00
6
  0% 30.6° 30.02 in   0% 416 miles
04:00
6
  0% 30.8° 30.00 in   0% 416 miles
05:00
6
  0% 31.3° 29.99 in   0% 316 miles
06:00
6
  0% 31.8° 29.99 in   0% 316 miles
07:00
6
  0% 32.6° 29.99 in   0% 316 miles
08:00
6
  0% 34.3° 29.98 in   0% 416 miles
09:00
7
  0% 36.8° 29.98 in UV
UV Index: 1
0% 516 miles
10:00
8
  0% 38.7° 29.96 in UV
UV Index: 1
0% 716 miles
11:00
9
  0% 40.4° 29.93 in UV
UV Index: 1
0% 816 miles
12:00
9
  0% 41.5° 29.90 in UV
UV Index: 1
0% 916 miles
13:00
9
  0% 41.8° 29.86 in UV
UV Index: 1
0% 916 miles
14:00
9
  0% 41.7° 29.83 in UV
UV Index: 1
0% 916 miles
15:00
9
  0% 41.5° 29.80 in   0% 816 miles
16:00
8
  0% 41.5° 29.79 in   1% 716 miles
17:00
8
  0% 41.3° 29.79 in   1% 616 miles
18:00
7
  0% 41.4° 29.79 in   10% 515 miles
19:00
6
  0% 41.7° 29.78 in   28% 415 miles
20:00
6
  0% 42.1° 29.77 in   46% 415 miles
21:00
6
  0% 42.6° 29.76 in   60% 415 miles
22:00
6
  0% 43.2° 29.75 in   69% 414 miles
23:00
6
  0% 43.5° 29.74 in   78% 414 miles
 07:17     16:44    Daylength: 9:27 Thursday 20 Dec
00:00
6
0.01 in 0% 44.0° 29.73 in   85% 414 miles
01:00
5
  0% 44.3° 29.73 in   91% 313 miles
02:00
5
  0% 44.5° 29.73 in   97% 313 miles
03:00
4
0.01 in 0% 44.8° 29.72 in   100% 313 miles
04:00
3
  0% 45.0° 29.72 in   100% 312 miles
05:00
2
0.01 in <20% 45.1° 29.72 in   100% 311 miles
06:00
1
  <20% 45.1° 29.73 in   100% 310 miles
07:00
1
  0% 44.9° 29.74 in   100% 307 miles
08:00
3
0.01 in <20% 44.9° 29.76 in   100% 306 miles
09:00
4
  0% 44.2° 29.78 in   100% 307 miles
10:00
6
  0% 43.4° 29.79 in   100% 312 miles
11:00
8
  0% 42.2° 29.78 in   100% 313 miles
12:00
9
  0% 41.0° 29.78 in   100% 414 miles
13:00
11
  0% 39.9° 29.78 in   98% 414 miles
14:00
12
  0% 38.8° 29.78 in   96% 515 miles
15:00
13
  0% 37.7° 29.79 in   94% 515 miles
16:00
14
  0% 36.8° 29.81 in   96% 515 miles
17:00
14
  0% 35.6° 29.84 in   98% 516 miles
18:00
14
  0% 34.4° 29.86 in   99% 517 miles
19:00
14
  0% 33.2° 29.88 in   99% 417 miles
20:00
13
  0% 31.9° 29.89 in   99% 417 miles
21:00
13
  0% 31.0° 29.90 in   99% 417 miles
Move the mouse over the values for info.

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