Updated: July 23, 2018 5:25 am
Next update: July 23, 2018 4:25 pm

WXSIM Forecast for: O'Fallon

Today


Tonight


Tuesday


Tuesday
night


Wednesday


Wednesday
night


Thursday


Thursday
night


Friday











6
4
8
5
5
3
8
3
3

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Today
6
  UV
UV Index: 9
Sunny. Patchy light fog in the morning.
Tonight
4
  Clear.
Tuesday
8
  UV
UV Index: 9
Sunny.
Tuesday night
5
  Clear. Moderate fog after midnight. Relatively cool.
Wednesday
5
  UV
UV Index: 8
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Moderate fog in the morning.
Wednesday night
3
  Fair to partly cloudy in the evening, becoming clear after midnight. Moderate fog after midnight.
Thursday
8
  UV
UV Index: 10
Sunny. Moderate fog in the morning.
Thursday night
3
  Clear in the evening, becoming fair after midnight. Moderate fog after midnight. Relatively cool.
Friday
3
  UV
UV Index: 8
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Moderate fog in the morning.
Friday night
4
  Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight.
Saturday
7
1 in
PoP: 80%
Cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the afternoon. A chance of rain in the morning, then rain likely in the afternoon. Precipitation showery or intermittent. Relatively cool. Precipitation mostly around an inch.
Saturday night
7
1 in
PoP: 80%
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. Rain likely. Precipitation showery or intermittent. Precipitation mostly around an inch.
Sunday
7
0.25 in
PoP: 60%
UV
UV Index: 6
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon.
Scattered thundershowers possible. Precipitation mostly around a quarter of an inch.
Sunday night
6
  Partly to mostly cloudy in the evening, becoming fair 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
 05:56     20:22    Daylength: 14:25 Today
09:00
6
  30.00 in UV
UV Index: 9
Sunny.
12:00
Heat index:86F
8
  29.98 in UV
UV Index: 9
Sunny.
15:00
Heat index:88F
8
  29.95 in UV
UV Index: 5
Sunny.
18:00
Heat index:88F
6
  29.96 in   Sunny.
21:00
4
  29.98 in   Clear.
 05:57     20:21    Daylength: 14:23 Tomorrow
00:00
3
  29.99 in   Clear.
03:00
3
  29.99 in   Clear.
06:00
4
  30.02 in UV
UV Index: 3
Sunny.
09:00
6
  30.06 in UV
UV Index: 9
Sunny.
12:00
Heat index:91F
8
  30.03 in UV
UV Index: 9
Mostly sunny.
15:00
Heat index:93F
9
  29.98 in UV
UV Index: 5
Mostly sunny.
18:00
Heat index:92F
8
  29.99 in   Sunny.
21:00
5
  30.02 in   Clear.
 05:58     20:20    Daylength: 14:22 Wednesday 25 Jul
00:00
4
  30.04 in   Clear.
Moderate fog.
03:00
4
  30.04 in   Clear.
Moderate fog.
06:00
4
  30.05 in UV
UV Index: 3
Partly cloudy.
Moderate fog.
09:00
4
  30.07 in UV
UV Index: 8
Partly cloudy.
12:00
5
  30.04 in UV
UV Index: 8
Sunny.
15:00
6
  29.99 in UV
UV Index: 4
Sunny.
18:00
5
  29.98 in   Sunny.
21:00
2
  30.00 in   Clear.
 05:59     20:19    Daylength: 14:20 Thursday 26 Jul
00:00
1
  30.01 in   Clear.
Moderate fog.
03:00
3
  30.00 in   Clear.
Moderate fog.
06:00
4
  30.03 in UV
UV Index: 4
Mostly sunny.
Moderate fog.
09:00
7
  30.06 in UV
UV Index: 10
Mostly sunny.
12:00
9
  30.06 in UV
UV Index: 10
Mostly sunny.
15:00
9
  30.04 in UV
UV Index: 5
Sunny.
18:00
6
  30.06 in   Sunny.
21:00
3
  30.11 in   Mostly clear.
Light fog.
 06:00     20:18    Daylength: 14:18 Friday 27 Jul
00:00
2
  30.09 in   Mostly clear.
Moderate fog.
03:00
3
  30.11 in   Mostly clear.
Moderate fog.
06:00
2
  30.14 in UV
UV Index: 3
Partly cloudy.
Moderate fog.
09:00
2
  30.16 in UV
UV Index: 8
Partly cloudy.
12:00
3
  30.14 in UV
UV Index: 8
Mostly cloudy.
15:00
4
  30.11 in UV
UV Index: 3
Mostly cloudy.
18:00
2
  30.10 in   Mostly sunny.
21:00
4
  30.13 in   Clear.
Light fog.
 06:00     20:17    Daylength: 14:17 Saturday 28 Jul
00:00
4
  30.09 in   Partly cloudy.
Light fog.
03:00
4
  30.08 in   Partly cloudy.
Light fog.
06:00
5
0.04 in 30.09 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
09:00
8
0.13 in 30.10 in UV
UV Index: 3
Cloudy.
Light rain.
12:00
9
0.33 in 30.06 in UV
UV Index: 3
Cloudy.
Light rain.
15:00
5
0.63 in 30.01 in UV
UV Index: 1
Mostly cloudy.
Moderate rain showers.
18:00
7
0.17 in 30.00 in   Mostly cloudy.
Light rain showers.
21:00
8
0.04 in 29.98 in   Mostly cloudy.
Light rain showers.
 06:01     20:16    Daylength: 14:15 Sunday 29 Jul
00:00
7
0.29 in 29.93 in   Partly cloudy.
Light rain showers.
03:00
7
0.33 in 29.93 in   Mostly cloudy.
Light rain showers.
06:00
5
0.06 in 29.92 in UV
UV Index: 1
Cloudy.
Light rain.
09:00
7
0.06 in 29.94 in UV
UV Index: 5
Cloudy.
Light rain.
12:00
7
0.01 in 29.94 in UV
UV Index: 6
Mostly cloudy.
Light rain showers.
15:00
8
0.01 in 29.92 in UV
UV Index: 4
Mostly cloudy.
Light rain showers.
18:00
7
  29.94 in   Mostly cloudy.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 05:56     20:22    Daylength: 14:25 Today
07:00
5
  0% 64.5° 29.97 in UV
UV Index: 1
0% 13 miles
08:00
6
  0% 64.6° 29.99 in UV
UV Index: 3
1% 13 miles
09:00
6
  0% 64.6° 30.00 in UV
UV Index: 6
1% 13 miles
10:00
7
  0% 64.3° 30.00 in UV
UV Index: 8
1% 13 miles
11:00
Heat index:84F
7
  0% 63.9° 30.00 in UV
UV Index: 9
1% 13 miles
12:00
Heat index:86F
8
  0% 63.5° 29.98 in UV
UV Index: 9
0% 14 miles
13:00
Heat index:87F
8
  0% 63.1° 29.96 in UV
UV Index: 8
0% 14 miles
14:00
Heat index:87F
8
  0% 62.7° 29.95 in UV
UV Index: 7
0% 14 miles
15:00
Heat index:88F
8
  0% 62.7° 29.95 in UV
UV Index: 5
0% 15 miles
16:00
Heat index:88F
8
  0% 62.8° 29.95 in UV
UV Index: 3
0% 15 miles
17:00
7
  0% 62.7° 29.96 in UV
UV Index: 1
0% 15 miles
18:00
6
  0% 63.6° 29.96 in   0% 14 miles
19:00
5
  0% 65.1° 29.97 in   0% 14 miles
20:00
4
  0% 66.3° 29.97 in   0% 14 miles
21:00
4
  0% 67.2° 29.98 in   0% 13 miles
22:00
3
  0% 67.4° 29.98 in   0% 13 miles
23:00
3
  0% 67.2° 29.99 in   0% 12 miles
 05:57     20:21    Daylength: 14:23 Tomorrow
00:00
3
  0% 67.0° 29.99 in   0% 12 miles
01:00
3
  0% 66.8° 30.00 in   0% 12 miles
02:00
3
  0% 66.5° 30.00 in   0% 12 miles
03:00
3
  0% 66.1° 29.99 in   0% 11 miles
04:00
3
  0% 65.8° 29.99 in   0% 10 miles
05:00
3
  0% 65.5° 30.00 in   0% 10 miles
06:00
4
  0% 66.0° 30.02 in UV
UV Index: 1
0% 11 miles
07:00
5
  0% 66.8° 30.04 in UV
UV Index: 1
0% 12 miles
08:00
6
  0% 67.3° 30.05 in UV
UV Index: 3
0% 12 miles
09:00
6
  0% 67.6° 30.06 in UV
UV Index: 5
0% 12 miles
10:00
Heat index:88F
7
  0% 67.5° 30.06 in UV
UV Index: 7
0% 13 miles
11:00
Heat index:90F
8
  0% 67.2° 30.05 in UV
UV Index: 9
0% 13 miles
12:00
Heat index:91F
8
  0% 67.0° 30.03 in UV
UV Index: 9
6% 13 miles
13:00
Heat index:92F
8
  0% 67.1° 30.00 in UV
UV Index: 8
4% 14 miles
14:00
Heat index:93F
9
  0% 67.2° 29.99 in UV
UV Index: 7
6% 14 miles
15:00
Heat index:93F
9
  0% 67.3° 29.98 in UV
UV Index: 5
11% 14 miles
16:00
Heat index:92F
9
  0% 66.6° 29.98 in UV
UV Index: 2
6% 15 miles
17:00
Heat index:90F
9
  0% 65.4° 29.98 in UV
UV Index: 1
5% 15 miles
18:00
8
  0% 65.2° 29.99 in   4% 15 miles
19:00
7
  0% 65.6° 30.00 in   3% 14 miles
20:00
6
  0% 65.8° 30.01 in   1% 14 miles
21:00
5
  0% 66.1° 30.02 in   0% 13 miles
22:00
5
  0% 66.1° 30.03 in   0% 13 miles
23:00
4
  0% 65.9° 30.03 in   0% 10 miles
 05:58     20:20    Daylength: 14:22 Wednesday 25 Jul
00:00
4
  0% 65.6° 30.04 in   0% 3.9 miles
01:00
4
  0% 65.3° 30.05 in   0% 1.3 miles
02:00
4
  0% 64.9° 30.04 in   0% 0.6 miles
03:00
4
  0% 64.4° 30.04 in   0% 0.4 miles
04:00
4
  0% 63.8° 30.04 in   0% 0.3 miles
05:00
4
  0% 63.3° 30.04 in   0% 0.3 miles
06:00
4
  0% 63.4° 30.05 in   9% 0.4 miles
Move the mouse over the values for info.

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