Updated: April 19, 2019 5:26 pm
Next update: April 20, 2019 5:25 am

WXSIM Forecast for: O'Fallon

Tonight


Saturday


Saturday
night


Sunday


Sunday
night


Monday


Monday
night


50% Tuesday


Tuesday
night











12
12
4
10
9
13
8
7
3

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Tonight
12
  Fair to partly cloudy in the evening, becoming clear after midnight. Breezy and cool.
Saturday
12
  UV
UV Index: 7
Sunny. Breezy.
Saturday night
4
  Clear.
Sunday
10
  UV
UV Index: 8
Sunny. Warm.
Sunday night
9
  Partly cloudy.
Monday
13
<0.1 in
PoP: 20%
UV
UV Index: 6
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain. Warm. Precipitation less than a tenth of an inch.
Monday night
8
  Partly cloudy in the evening, becoming fair after midnight. Patchy light fog after midnight. Mild.
Tuesday
7
0.1 in
PoP: 50%
Mostly cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon.
Scattered thundershowers possible. Precipitation mostly around a tenth of an inch.
Tuesday night
3
<0.25 in
PoP: 50%
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain.
Scattered thunderstorms likely. Precipitation less than a quarter of an inch.
Wednesday
0
0.25 in
PoP: 70%
Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. Rain likely.
Scattered thunderstorms likely. Precipitation mostly around a quarter of an inch.
Wednesday night
5
  Partly to mostly cloudy in the evening, becoming partly cloudy after midnight.
Thursday
8
  UV
UV Index: 6
Partly to mostly cloudy. Warm.
Thursday night
7
  Mostly clear in the evening, becoming clear after midnight.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 06:19     19:44    Daylength: 13:25 Friday 19 Apr
06:00
11
  29.87 in UV
UV Index: 2
Clear.
09:00
13
  29.91 in UV
UV Index: 7
Sunny.
12:00
13
  29.87 in UV
UV Index: 7
Sunny.
15:00
11
  29.83 in UV
UV Index: 3
Sunny.
18:00
6
  29.85 in   Sunny.
21:00
3
  29.87 in   Clear.
 06:17     19:45    Daylength: 13:27 Today
00:00
3
  29.90 in   Clear.
03:00
4
  29.91 in   Clear.
06:00
4
  29.93 in UV
UV Index: 3
Clear.
09:00
7
  29.97 in UV
UV Index: 8
Sunny.
12:00
10
  29.94 in UV
UV Index: 8
Sunny.
15:00
11
  29.87 in UV
UV Index: 4
Sunny.
18:00
8
  29.89 in   Sunny.
21:00
9
  29.95 in   Clear.
 06:16     19:46    Daylength: 13:30 Tomorrow
00:00
10
  29.96 in   Clear.
03:00
8
  29.94 in   Clear.
06:00
7
  29.96 in UV
UV Index: 2
Mostly clear.
09:00
10
  29.99 in UV
UV Index: 5
Partly cloudy.
12:00
13
  29.96 in UV
UV Index: 6
Mostly sunny.
15:00
13
  29.89 in UV
UV Index: 3
Partly cloudy.
18:00
9
0.01 in 29.90 in   Partly cloudy.
Light rain showers.
21:00
9
  29.93 in   Partly cloudy.
 06:15     19:47    Daylength: 13:32 Monday 22 Apr
00:00
8
  29.94 in   Partly cloudy.
03:00
7
  29.94 in   Mostly clear.
Light fog.
06:00
6
  29.98 in UV
UV Index: 2
Mostly cloudy.
Light fog.
09:00
7
0.03 in 30.02 in UV
UV Index: 3
Cloudy.
Light rain.
12:00
9
0.02 in 30.01 in UV
UV Index: 3
Cloudy.
Light rain.
15:00
8
0.11 in 29.96 in UV
UV Index: 1
Cloudy.
Light rain.
18:00
4
0.04 in 29.95 in   Mostly cloudy.
Light rain showers.
21:00
4
  29.98 in   Mostly cloudy.
 06:13     19:48    Daylength: 13:34 Tuesday 23 Apr
00:00
3
0.01 in 29.95 in   Mostly cloudy.
Light rain showers.
03:00
2
0.05 in 29.91 in   Cloudy.
Light rain.
06:00
0
0.14 in 29.90 in UV
UV Index: 1
Cloudy.
Light rain.
09:00
1
0.04 in 29.90 in UV
UV Index: 3
Cloudy.
Light rain.
12:00
3
0.06 in 29.85 in UV
UV Index: 4
Cloudy.
Light rain.
15:00
6
  29.82 in UV
UV Index: 2
Mostly cloudy.
18:00
6
  29.84 in   Mostly cloudy.
21:00
5
  29.89 in   Partly cloudy.
 06:12     19:49    Daylength: 13:36 Wednesday 24 Apr
00:00
5
  29.88 in   Mostly cloudy.
03:00
5
  29.88 in   Mostly cloudy.
06:00
4
  29.91 in UV
UV Index: 3
Mostly cloudy.
09:00
6
  29.91 in UV
UV Index: 6
Mostly cloudy.
12:00
8
  29.86 in UV
UV Index: 6
Mostly cloudy.
15:00
9
  29.83 in UV
UV Index: 4
Partly cloudy.
18:00
7
  29.85 in   Mostly sunny.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 06:19     19:44    Daylength: 13:25 Friday 19 Apr
05:00
11
  0% 33.5° 29.86 in   3% 15 miles
06:00
11
  0% 33.0° 29.87 in   3% 15 miles
07:00
12
  0% 33.3° 29.89 in UV
UV Index: 1
1% 15 miles
08:00
12
  0% 34.1° 29.90 in UV
UV Index: 2
0% 15 miles
09:00
13
  0% 34.9° 29.91 in UV
UV Index: 4
0% 15 miles
10:00
13
  0% 35.9° 29.91 in UV
UV Index: 6
0% 15 miles
11:00
13
  0% 37.2° 29.89 in UV
UV Index: 7
0% 15 miles
12:00
13
  0% 38.4° 29.87 in UV
UV Index: 7
0% 16 miles
13:00
12
  0% 39.5° 29.85 in UV
UV Index: 7
0% 16 miles
14:00
12
  0% 40.5° 29.83 in UV
UV Index: 5
0% 16 miles
15:00
11
  0% 41.5° 29.83 in UV
UV Index: 3
0% 16 miles
16:00
9
  0% 42.9° 29.84 in UV
UV Index: 1
0% 15 miles
17:00
8
  0% 44.1° 29.85 in UV
UV Index: 1
0% 15 miles
18:00
6
  0% 44.6° 29.85 in   0% 15 miles
19:00
4
  0% 43.8° 29.86 in   0% 14 miles
20:00
3
  0% 42.7° 29.87 in   0% 14 miles
21:00
3
  0% 42.0° 29.87 in   0% 13 miles
22:00
3
  0% 42.0° 29.88 in   0% 13 miles
23:00
3
  0% 42.1° 29.89 in   0% 13 miles
 06:17     19:45    Daylength: 13:27 Today
00:00
3
  0% 42.3° 29.90 in   0% 13 miles
01:00
4
  0% 42.3° 29.90 in   0% 12 miles
02:00
4
  0% 42.4° 29.91 in   0% 12 miles
03:00
4
  0% 42.4° 29.91 in   0% 12 miles
04:00
3
  0% 42.5° 29.91 in   0% 12 miles
05:00
3
  0% 42.6° 29.91 in   0% 12 miles
06:00
4
  0% 43.5° 29.93 in   0% 12 miles
07:00
5
  0% 45.6° 29.95 in UV
UV Index: 1
0% 12 miles
08:00
6
  0% 48.1° 29.96 in UV
UV Index: 3
0% 12 miles
09:00
7
  0% 49.9° 29.97 in UV
UV Index: 5
0% 13 miles
10:00
8
  0% 50.9° 29.97 in UV
UV Index: 7
0% 13 miles
11:00
9
  0% 51.3° 29.95 in UV
UV Index: 8
0% 13 miles
12:00
10
  0% 51.7° 29.94 in UV
UV Index: 8
0% 13 miles
13:00
10
  0% 52.3° 29.90 in UV
UV Index: 7
0% 13 miles
14:00
11
  0% 52.8° 29.88 in UV
UV Index: 6
0% 14 miles
15:00
11
  0% 53.4° 29.87 in UV
UV Index: 4
1% 14 miles
16:00
10
  <20% 54.3° 29.87 in UV
UV Index: 2
2% 14 miles
17:00
9
  <20% 55.1° 29.88 in UV
UV Index: 1
3% 14 miles
18:00
8
  <20% 55.6° 29.89 in   3% 14 miles
19:00
8
  0% 55.6° 29.91 in   2% 13 miles
20:00
8
  0% 55.5° 29.93 in   1% 13 miles
21:00
9
  0% 55.5° 29.95 in   0% 13 miles
22:00
9
  0% 55.5° 29.95 in   0% 13 miles
23:00
9
  0% 55.5° 29.96 in   0% 13 miles
 06:16     19:46    Daylength: 13:30 Tomorrow
00:00
10
  0% 55.5° 29.96 in   0% 12 miles
01:00
9
  0% 55.6° 29.96 in   0% 12 miles
02:00
9
  0% 55.5° 29.95 in   0% 12 miles
03:00
8
  0% 55.3° 29.94 in   1% 12 miles
04:00
8
  0% 55.1° 29.94 in   2% 12 miles
Move the mouse over the values for info.

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