Updated: April 30, 2017 5:25 am
Next update: April 30, 2017 4:25 pm

WXSIM Forecast for: O'Fallon

90% Today


Tonight


Monday


Monday
night


Tuesday


Tuesday
night


70% Wednesday


80% Wednesday
night


70% Thursday











16
11
14
9
12
4
11
12
13

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Today
16
0.5 in
PoP: 90%
Dense overcast. Light to moderate fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon. Precipitation showery or intermittent. Breezy. Precipitation mostly around half an inch.
Tonight
11
  Partly to mostly cloudy in the evening, becoming fair after midnight. Breezy.
Monday
14
  UV
UV Index: 5
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Breezy and cool. Wind chill around 48.
Monday night
9
  Mostly cloudy in the evening, becoming mostly clear after midnight. Cool.
Tuesday
12
  UV
UV Index: 8
Sunny. Breezy.
Tuesday night
4
<0.1 in
PoP: 30%
Fair to partly cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain after midnight. Precipitation less than a tenth of an inch.
Wednesday
11
1 in
PoP: 70%
Cloudy in the morning, becoming dense overcast in the afternoon. Rain likely. Cool. Precipitation mostly around an inch.
Wednesday night
12
1 in
PoP: 80%
Dense overcast. Rain likely. Breezy and cool. Wind chill ranging from 36 to 42. Precipitation mostly around an inch.
Thursday
13
0.25-0.5 in
PoP: 70%
Dense overcast. Rain likely in the morning, then a chance of rain in the afternoon. Breezy and cool. Precipitation mostly between a quarter and half an inch.
Thursday night
12
  Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Breezy and cool.
Friday
16
  UV
UV Index: 9
Mostly sunny in the morning, becoming sunny in the afternoon. Breezy.
Friday night
8
  Clear. Cool.
Saturday
9
  UV
UV Index: 9
Sunny.
Saturday night
6
  Clear.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 06:04     19:55    Daylength: 13:51 Today
15:00
16
0.04 in 29.52 in UV
UV Index: 2
Cloudy.
Light rain.
18:00
15
  29.52 in   Mostly cloudy.
21:00
13
  29.54 in   Mostly clear.
 06:03     19:56    Daylength: 13:53 Tomorrow
00:00
10
  29.53 in   Mostly clear.
03:00
11
  29.48 in   Mostly clear.
06:00
12
  29.46 in UV
UV Index: 2
Mostly cloudy.
09:00
14
  29.51 in UV
UV Index: 5
Mostly cloudy.
12:00
16
  29.54 in UV
UV Index: 5
Mostly cloudy.
15:00
15
  29.59 in UV
UV Index: 2
Mostly cloudy.
18:00
12
  29.66 in   Mostly cloudy.
21:00
9
  29.71 in   Partly cloudy.
 06:01     19:57    Daylength: 13:55 Tuesday 02 May
00:00
9
  29.75 in   Clear.
03:00
10
  29.77 in   Clear.
06:00
9
  29.83 in UV
UV Index: 3
Clear.
09:00
11
  29.91 in UV
UV Index: 8
Sunny.
12:00
13
  29.94 in UV
UV Index: 9
Sunny.
15:00
13
  29.95 in UV
UV Index: 4
Sunny.
18:00
7
  29.98 in   Sunny.
21:00
3
  30.06 in   Clear.
 06:00     19:58    Daylength: 13:57 Wednesday 03 May
00:00
2
  30.08 in   Clear.
03:00
4
  30.07 in   Mostly clear.
06:00
5
0.19 in 30.10 in UV
UV Index: 1
Partly cloudy.
Light rain showers.
09:00
9
0.26 in 30.13 in UV
UV Index: 3
Mostly cloudy.
Light rain showers.
12:00
10
0.52 in 30.09 in UV
UV Index: 3
Mostly cloudy.
Moderate rain showers.
15:00
11
0.12 in 30.05 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
18:00
9
0.04 in 30.04 in   Cloudy.
Light rain.
21:00
12
0.61 in 30.03 in   Cloudy.
Moderate rain.
 05:59     19:59    Daylength: 13:59 Thursday 04 May
00:00
13
0.25 in 29.99 in   Cloudy.
Light rain.
03:00
15
0.23 in 29.95 in   Mostly cloudy.
Light rain showers.
06:00
11
0.12 in 29.96 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
09:00
13
0.10 in 29.99 in UV
UV Index: 3
Cloudy.
Light rain.
12:00
15
0.02 in 29.97 in UV
UV Index: 3
Cloudy.
Light rain.
15:00
14
  29.94 in UV
UV Index: 2
Cloudy.
18:00
11
  29.95 in   Cloudy.
21:00
12
  29.97 in   Clear.
 05:58     20:00    Daylength: 14:01 Friday 05 May
00:00
11
  29.96 in   Clear.
03:00
13
  29.94 in   Mostly clear.
06:00
14
  29.96 in UV
UV Index: 4
Mostly sunny.
09:00
16
  29.97 in UV
UV Index: 9
Sunny.
12:00
17
  29.93 in UV
UV Index: 9
Mostly sunny.
15:00
17
  29.91 in UV
UV Index: 4
Mostly sunny.
18:00
11
  29.93 in   Sunny.
21:00
7
  29.98 in   Clear.
 05:57     20:01    Daylength: 14:03 Saturday 06 May
00:00
7
  29.99 in   Clear.
03:00
7
  30.00 in   Clear.
06:00
8
  30.04 in UV
UV Index: 4
Sunny.
09:00
10
  30.06 in UV
UV Index: 9
Sunny.
12:00
9
  30.05 in UV
UV Index: 9
Sunny.
15:00
9
  30.02 in UV
UV Index: 4
Sunny.
18:00
7
  30.01 in   Sunny.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 06:04     19:55    Daylength: 13:51 Today
14:00
16
0.02 in 0% 66.8° 29.54 in UV
UV Index: 2
99% 12 miles
15:00
16
0.01 in 0% 65.3° 29.52 in UV
UV Index: 2
99% 13 miles
16:00
16
0.02 in 0% 61.9° 29.52 in UV
UV Index: 1
88% 13 miles
17:00
16
0.01 in 0% 57.3° 29.52 in   75% 13 miles
18:00
15
  0% 53.1° 29.52 in   62% 16 miles
19:00
14
  0% 50.7° 29.52 in   41% 16 miles
20:00
14
  0% 49.0° 29.53 in   28% 16 miles
21:00
13
  0% 48.1° 29.54 in   17% 16 miles
22:00
12
  0% 47.9° 29.54 in   14% 16 miles
23:00
11
  0% 48.0° 29.54 in   12% 16 miles
 06:03     19:56    Daylength: 13:53 Tomorrow
00:00
10
  0% 47.9° 29.53 in   11% 15 miles
01:00
10
  0% 47.0° 29.52 in   10% 15 miles
02:00
10
  0% 46.0° 29.50 in   11% 15 miles
03:00
11
  0% 44.7° 29.48 in   12% 16 miles
04:00
11
  0% 43.4° 29.46 in   13% 16 miles
05:00
12
  0% 43.1° 29.45 in   13% 16 miles
06:00
12
  0% 43.9° 29.46 in   21% 16 miles
07:00
13
  0% 44.4° 29.47 in UV
UV Index: 1
41% 16 miles
08:00
14
  0% 45.0° 29.49 in UV
UV Index: 2
61% 16 miles
09:00
14
  0% 45.0° 29.51 in UV
UV Index: 3
71% 16 miles
10:00
15
  0% 44.5° 29.52 in UV
UV Index: 4
71% 16 miles
11:00
16
  0% 43.7° 29.53 in UV
UV Index: 5
69% 16 miles
12:00
16
  0% 43.0° 29.54 in UV
UV Index: 5
69% 17 miles
13:00
16
  0% 42.4° 29.55 in UV
UV Index: 4
72% 17 miles
14:00
16
  0% 41.8° 29.57 in UV
UV Index: 3
76% 17 miles
15:00
15
  0% 41.4° 29.59 in UV
UV Index: 2
79% 17 miles
16:00
14
  0% 41.1° 29.62 in UV
UV Index: 1
82% 16 miles
17:00
13
  0% 40.8° 29.64 in   84% 16 miles
18:00
12
  0% 40.4° 29.66 in   85% 16 miles
19:00
11
  0% 40.6° 29.68 in   75% 16 miles
20:00
10
  0% 40.9° 29.70 in   62% 15 miles
21:00
9
  0% 41.3° 29.71 in   49% 15 miles
22:00
9
  0% 41.6° 29.73 in   34% 15 miles
23:00
9
  0% 41.9° 29.74 in   19% 15 miles
 06:01     19:57    Daylength: 13:55 Tuesday 02 May
00:00
9
  0% 42.2° 29.75 in   3% 15 miles
01:00
7
  0% 42.5° 29.77 in   2% 15 miles
02:00
8
  0% 42.9° 29.77 in   4% 15 miles
03:00
10
  0% 43.4° 29.77 in   5% 15 miles
04:00
9
  0% 43.8° 29.78 in   4% 15 miles
05:00
9
  0% 44.1° 29.80 in   3% 14 miles
06:00
9
  0% 44.6° 29.83 in   2% 14 miles
07:00
9
  0% 45.8° 29.86 in UV
UV Index: 1
1% 14 miles
08:00
10
  0% 46.6° 29.89 in UV
UV Index: 3
1% 14 miles
09:00
11
  0% 46.8° 29.91 in UV
UV Index: 5
0% 14 miles
10:00
12
  0% 47.0° 29.93 in UV
UV Index: 7
0% 14 miles
11:00
12
  0% 47.0° 29.94 in UV
UV Index: 8
0% 14 miles
12:00
13
  0% 47.0° 29.94 in UV
UV Index: 9
0% 14 miles
13:00
13
  0% 46.9° 29.93 in UV
UV Index: 8
0% 14 miles
Move the mouse over the values for info.

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