Updated: March 27, 2017 5:25 am
Next update: March 27, 2017 4:25 pm

WXSIM Forecast for: O'Fallon

80% Today


Tonight


Tuesday


Tuesday
night


Wednesday


80% Wednesday
night


70% Thursday


Thursday
night


Friday











4
6
5
6
11
14
9
10
11

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Today
4
0.5 in
PoP: 80%
Dense overcast. Patchy light fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon.
Scattered thundershowers possible. Precipitation mostly around half an inch.
Tonight
6
  Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight.
Tuesday
5
  UV
UV Index: 5
Mostly cloudy to cloudy.
Tuesday night
6
  Mostly cloudy to cloudy in the evening, becoming cloudy after midnight.
Wednesday
11
<0.1 in
PoP: 40%
Dense overcast. A chance of rain in the morning, then a slight chance of rain in the afternoon. Precipitation less than a tenth of an inch.
Wednesday night
14
3 in
PoP: 80%
Dense overcast. Patchy light fog after midnight. Rain likely.
Scattered thundershowers possible. Breezy. Precipitation mostly around 3 inches.
Thursday
9
0.25-0.5 in
PoP: 70%
UV
UV Index: 5
Mostly cloudy to cloudy in the morning, becoming mostly sunny in the afternoon. Moderate fog in the morning. Rain likely.
Scattered thunderstorms likely. Unusually warm. Precipitation mostly between a quarter and half an inch.
Thursday night
10
  Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight.
Friday
11
  Cloudy.
Friday night
6
  Cloudy in the evening, becoming partly cloudy after midnight.
Saturday
5
  UV
UV Index: 6
Mostly sunny in the morning, becoming mostly cloudy in the afternoon.
Saturday night
3
  Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight.
Sunday
4
  UV
UV Index: 5
Cloudy.
Sunday night
4
  Cloudy.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 06:52     19:22    Daylength: 12:30 Today
12:00
2
0.02 in 29.82 in UV
UV Index: 2
Cloudy.
Light rain.
15:00
4
  29.78 in UV
UV Index: 1
Mostly cloudy.
18:00
5
  29.81 in   Mostly cloudy.
21:00
5
  29.85 in   Mostly cloudy.
 06:51     19:23    Daylength: 12:32 Tomorrow
00:00
6
  29.90 in   Mostly cloudy.
03:00
7
  29.93 in   Mostly cloudy.
06:00
6
  29.96 in UV
UV Index: 1
Mostly cloudy.
09:00
5
  30.03 in UV
UV Index: 5
Mostly cloudy.
12:00
5
  30.03 in UV
UV Index: 5
Mostly cloudy.
15:00
5
  30.01 in UV
UV Index: 2
Mostly cloudy.
18:00
6
  30.05 in   Mostly cloudy.
21:00
7
  30.07 in   Mostly cloudy.
 06:49     19:24    Daylength: 12:35 Wednesday 29 Mar
00:00
6
  30.07 in   Mostly cloudy.
03:00
7
0.01 in 30.06 in   Cloudy.
Light rain.
06:00
8
0.04 in 30.07 in UV
UV Index: 1
Cloudy.
Light rain.
09:00
10
0.01 in 30.10 in UV
UV Index: 3
Cloudy.
Light rain.
12:00
12
0.01 in 30.04 in UV
UV Index: 3
Cloudy.
Light rain.
15:00
11
0.02 in 30.01 in UV
UV Index: 1
Cloudy.
Light rain.
18:00
14
0.22 in 29.96 in   Cloudy.
Light rain.
21:00
14
1.05 in 29.93 in   Cloudy.
Heavy rain.
 06:48     19:25    Daylength: 12:37 Thursday 30 Mar
00:00
16
1.45 in 29.83 in   Cloudy.
Heavy rain.
03:00
12
0.41 in 29.71 in   Cloudy.
Light rain.
06:00
11
0.23 in 29.63 in UV
UV Index: 1
Cloudy.
Light rain.
09:00
6
0.01 in 29.63 in UV
UV Index: 5
Mostly cloudy.
Light rain showers.
12:00
11
  29.58 in UV
UV Index: 5
Mostly sunny.
15:00
11
  29.52 in UV
UV Index: 2
Mostly sunny.
18:00
6
  29.53 in   Mostly sunny.
21:00
5
  29.55 in   Mostly cloudy.
 06:46     19:26    Daylength: 12:40 Friday 31 Mar
00:00
10
  29.55 in   Mostly cloudy.
03:00
9
  29.57 in   Mostly cloudy.
06:00
10
0.01 in 29.64 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
09:00
12
  29.73 in UV
UV Index: 4
Mostly cloudy.
12:00
12
  29.78 in UV
UV Index: 4
Cloudy.
15:00
11
  29.81 in UV
UV Index: 2
Cloudy.
18:00
8
  29.89 in   Cloudy.
21:00
7
  29.97 in   Cloudy.
 06:45     19:27    Daylength: 12:42 Saturday 01 Apr
00:00
5
  30.01 in   Mostly cloudy.
03:00
5
  30.05 in   Clear.
06:00
4
  30.11 in UV
UV Index: 2
Mostly clear.
09:00
5
  30.16 in UV
UV Index: 6
Partly cloudy.
12:00
6
  30.17 in UV
UV Index: 6
Mostly cloudy.
15:00
5
  30.14 in UV
UV Index: 2
Mostly cloudy.
18:00
3
  30.16 in   Mostly cloudy.
21:00
3
  30.19 in   Mostly clear.
 06:43     19:28    Daylength: 12:45 Sunday 02 Apr
00:00
1
  30.20 in   Clear.
03:00
4
  30.20 in   Clear.
06:00
4
  30.19 in UV
UV Index: 1
Clear.
09:00
4
  30.22 in UV
UV Index: 5
Partly cloudy.
12:00
6
  30.16 in UV
UV Index: 5
Partly cloudy.
15:00
5
  30.11 in UV
UV Index: 2
Mostly cloudy.
18:00
4
  30.08 in   Mostly cloudy.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 06:52     19:22    Daylength: 12:30 Today
10:00
4
0.06 in 20-40% 55.6° 29.86 in UV
UV Index: 1
100% 5.9 miles
11:00
3
0.05 in 20-40% 56.8° 29.84 in UV
UV Index: 1
100% 6.9 miles
12:00
2
0.01 in 20-40% 57.7° 29.82 in UV
UV Index: 2
100% 12 miles
13:00
2
  40-60% 57.7° 29.79 in UV
UV Index: 2
99% 12 miles
14:00
3
0.01 in 20-40% 57.3° 29.78 in UV
UV Index: 2
97% 12 miles
15:00
4
  20-40% 56.6° 29.78 in UV
UV Index: 1
95% 13 miles
16:00
5
  20-40% 55.4° 29.79 in UV
UV Index: 1
81% 13 miles
17:00
5
  <20% 53.9° 29.80 in   78% 13 miles
18:00
5
  <20% 52.3° 29.81 in   84% 13 miles
19:00
5
  0% 51.4° 29.82 in   81% 13 miles
20:00
5
  0% 50.5° 29.84 in   74% 13 miles
21:00
5
  0% 50.1° 29.85 in   67% 13 miles
22:00
6
  0% 50.0° 29.86 in   70% 13 miles
23:00
6
  0% 50.0° 29.88 in   72% 13 miles
 06:51     19:23    Daylength: 12:32 Tomorrow
00:00
6
  0% 49.9° 29.90 in   73% 13 miles
01:00
6
  0% 49.6° 29.91 in   80% 13 miles
02:00
6
  0% 49.3° 29.92 in   89% 13 miles
03:00
7
  0% 48.9° 29.93 in   93% 13 miles
04:00
7
  0% 48.3° 29.93 in   91% 13 miles
05:00
6
  0% 47.7° 29.95 in   89% 13 miles
06:00
6
  0% 47.0° 29.96 in   86% 13 miles
07:00
5
  0% 46.5° 29.99 in UV
UV Index: 1
83% 13 miles
08:00
5
  0% 47.0° 30.01 in UV
UV Index: 1
79% 13 miles
09:00
5
  0% 48.0° 30.03 in UV
UV Index: 3
76% 13 miles
10:00
5
  0% 48.4° 30.03 in UV
UV Index: 4
76% 13 miles
11:00
5
  0% 48.7° 30.03 in UV
UV Index: 5
77% 13 miles
12:00
5
  0% 49.0° 30.03 in UV
UV Index: 5
77% 13 miles
13:00
5
  0% 49.1° 30.02 in UV
UV Index: 4
75% 13 miles
14:00
5
  0% 49.0° 30.01 in UV
UV Index: 3
73% 14 miles
15:00
5
  0% 48.9° 30.01 in UV
UV Index: 2
70% 14 miles
16:00
6
  0% 48.7° 30.02 in UV
UV Index: 1
71% 14 miles
17:00
6
  0% 48.2° 30.03 in   72% 14 miles
18:00
6
  0% 47.3° 30.05 in   73% 14 miles
19:00
6
  0% 46.5° 30.06 in   72% 14 miles
20:00
6
  0% 45.6° 30.06 in   70% 14 miles
21:00
7
  0% 45.2° 30.07 in   68% 14 miles
22:00
7
  0% 45.3° 30.07 in   69% 14 miles
23:00
6
  0% 45.7° 30.07 in   70% 14 miles
 06:49     19:24    Daylength: 12:35 Wednesday 29 Mar
00:00
6
  0% 46.0° 30.07 in   70% 14 miles
01:00
6
  0% 46.4° 30.07 in   81% 14 miles
02:00
6
  0% 46.8° 30.07 in   93% 14 miles
03:00
7
  0% 47.1° 30.06 in   100% 14 miles
04:00
7
0.01 in 0% 47.4° 30.06 in   100% 14 miles
05:00
8
  0% 47.5° 30.06 in   100% 14 miles
06:00
8
0.01 in 0% 47.6° 30.07 in   100% 12 miles
07:00
9
0.01 in 0% 48.0° 30.08 in   100% 12 miles
08:00
9
0.02 in 0% 48.8° 30.09 in UV
UV Index: 1
100% 12 miles
09:00
10
0.01 in 0% 49.6° 30.10 in UV
UV Index: 1
100% 14 miles
Move the mouse over the values for info.

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