Updated: July 24, 2017 5:25 am
Next update: July 24, 2017 4:25 pm

WXSIM Forecast for: O'Fallon

Today


Tonight


Tuesday


Tuesday
night


Wednesday


70% Wednesday
night


80% Thursday


Thursday
night


Friday











4
5
6
6
6
7
7
8
8

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Today
4
  UV
UV Index: 9
Sunny. Patchy light fog in the morning.
Heat index: 93°.
Tonight
5
  Mostly clear in the evening, becoming fair after midnight.
Tuesday
6
  UV
UV Index: 9
Mostly sunny in the morning, becoming sunny in the afternoon. Hot.
Heat index: 94°.
Tuesday night
6
  Clear.
Wednesday
6
  UV
UV Index: 7
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Very hot.
Heat index: 105°.
Wednesday night
7
0.5 in
PoP: 70%
Mostly cloudy in the evening, becoming cloudy after midnight. Light to moderate fog after midnight. Rain likely after midnight.
Precipitation mostly around half an inch.
Thursday
7
0.5 in
PoP: 80%
UV
UV Index: 5
Dense overcast in the morning, becoming cloudy in the afternoon. Light to moderate fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon.

Heat index: 98°. Precipitation mostly around half an inch.
Thursday night
8
<0.1 in
PoP: 20%
Partly to mostly cloudy in the evening, becoming mostly clear after midnight. Patchy light fog after midnight. A slight chance of rain.
Scattered thunderstorms likely. Precipitation less than a tenth of an inch.
Friday
8
  UV
UV Index: 10
Sunny. Patchy light fog in the morning.
Friday night
5
  Clear. Moderate fog after midnight.
Saturday
6
  UV
UV Index: 9
Sunny. Light to moderate fog in the morning.
Saturday night
4
  Fair to partly cloudy. Relatively cool.
Sunday
6
  UV
UV Index: 9
Sunny.
Sunday night
3
  Clear. Patchy light fog after midnight.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 05:57     20:21    Daylength: 14:23 Today
06:00
3
  29.90 in UV
UV Index: 3
Mostly sunny.
09:00
Heat index:85F
4
  29.96 in UV
UV Index: 9
Mostly sunny.
12:00
Heat index:93F
4
  29.94 in UV
UV Index: 9
Mostly sunny.
15:00
Heat index:94F
4
  29.92 in UV
UV Index: 5
Mostly sunny.
18:00
Heat index:93F
4
  29.95 in   Mostly sunny.
21:00
5
  29.98 in   Mostly clear.
 05:58     20:20    Daylength: 14:21 Tomorrow
00:00
6
  30.02 in   Mostly clear.
03:00
5
  30.04 in   Mostly clear.
06:00
5
  30.07 in UV
UV Index: 3
Mostly sunny.
09:00
6
  30.12 in UV
UV Index: 9
Mostly sunny.
12:00
Heat index:95F
6
  30.08 in UV
UV Index: 9
Mostly sunny.
15:00
Heat index:98F
6
  30.03 in UV
UV Index: 5
Mostly sunny.
18:00
Heat index:97F
5
  30.04 in   Mostly sunny.
21:00
5
  30.04 in   Clear.
 05:59     20:19    Daylength: 14:20 Wednesday 26 Jul
00:00
6
  30.04 in   Mostly clear.
03:00
6
  30.02 in   Mostly clear.
06:00
5
  30.02 in UV
UV Index: 3
Partly cloudy.
09:00
Heat index:93F
6
  30.01 in UV
UV Index: 7
Mostly cloudy.
12:00
Heat index:103F
5
  29.97 in UV
UV Index: 6
Mostly cloudy.
15:00
Heat index:106F
6
  29.90 in UV
UV Index: 3
Mostly cloudy.
18:00
Heat index:105F
4
  29.89 in   Mostly cloudy.
21:00
Heat index:102F
6
  29.88 in   Mostly clear.
 06:00     20:18    Daylength: 14:18 Thursday 27 Jul
00:00
8
  29.84 in   Mostly clear.
03:00
9
0.62 in 29.80 in   Partly cloudy.
Moderate rain showers.
06:00
6
0.22 in 29.82 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
09:00
7
0.01 in 29.85 in UV
UV Index: 5
Mostly cloudy.
Light rain showers.
12:00
6
0.01 in 29.81 in UV
UV Index: 5
Cloudy.
Light rain.
15:00
Heat index:99F
7
0.06 in 29.77 in UV
UV Index: 2
Cloudy.
Light rain.
18:00
9
  29.80 in   Mostly cloudy.
21:00
8
  29.84 in   Partly cloudy.
 06:01     20:17    Daylength: 14:16 Friday 28 Jul
00:00
8
  29.85 in   Mostly clear.
Light fog.
03:00
6
  29.87 in   Clear.
Light fog.
06:00
6
  29.92 in UV
UV Index: 4
Clear.
09:00
7
  29.94 in UV
UV Index: 10
Sunny.
12:00
8
  29.92 in UV
UV Index: 10
Mostly sunny.
15:00
10
  29.89 in UV
UV Index: 6
Mostly sunny.
18:00
7
  29.91 in   Sunny.
21:00
5
  29.95 in   Clear.
 06:01     20:16    Daylength: 14:14 Saturday 29 Jul
00:00
4
  29.96 in   Clear.
Moderate fog.
03:00
5
  29.96 in   Clear.
Moderate fog.
06:00
4
  30.00 in UV
UV Index: 3
Clear.
Light fog.
09:00
6
  30.03 in UV
UV Index: 9
Sunny.
12:00
7
  30.00 in UV
UV Index: 9
Sunny.
15:00
7
  29.97 in UV
UV Index: 5
Sunny.
18:00
6
  29.98 in   Partly cloudy.
21:00
5
  30.03 in   Partly cloudy.
 06:02     20:15    Daylength: 14:12 Sunday 30 Jul
00:00
4
  30.04 in   Mostly clear.
03:00
3
  30.04 in   Partly cloudy.
06:00
3
  30.08 in UV
UV Index: 3
Partly cloudy.
09:00
5
  30.11 in UV
UV Index: 9
Sunny.
12:00
8
  30.08 in UV
UV Index: 9
Sunny.
15:00
7
  30.04 in UV
UV Index: 5
Sunny.
18:00
5
  30.04 in   Sunny.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 05:57     20:21    Daylength: 14:23 Today
06:00
3
  0% 66.9° 29.90 in UV
UV Index: 1
10% 13 miles
07:00
4
  0% 67.2° 29.93 in UV
UV Index: 1
9% 12 miles
08:00
4
  0% 67.3° 29.95 in UV
UV Index: 3
8% 12 miles
09:00
Heat index:85F
4
  0% 67.3° 29.96 in UV
UV Index: 5
6% 12 miles
10:00
Heat index:88F
4
  0% 67.3° 29.96 in UV
UV Index: 7
3% 12 miles
11:00
Heat index:91F
4
  0% 67.5° 29.95 in UV
UV Index: 9
1% 12 miles
12:00
Heat index:93F
4
  0% 67.6° 29.94 in UV
UV Index: 9
4% 12 miles
13:00
Heat index:93F
3
  0% 67.7° 29.93 in UV
UV Index: 8
11% 13 miles
14:00
Heat index:94F
4
  0% 67.6° 29.92 in UV
UV Index: 7
17% 13 miles
15:00
Heat index:93F
4
  0% 67.1° 29.92 in UV
UV Index: 5
21% 13 miles
16:00
Heat index:93F
4
  0% 66.4° 29.94 in UV
UV Index: 2
20% 13 miles
17:00
Heat index:92F
4
  0% 65.6° 29.94 in UV
UV Index: 1
19% 13 miles
18:00
Heat index:90F
4
  0% 65.9° 29.95 in   18% 13 miles
19:00
4
  0% 67.1° 29.96 in   13% 13 miles
20:00
4
  0% 68.6° 29.97 in   8% 13 miles
21:00
5
  0% 69.5° 29.98 in   5% 12 miles
22:00
5
  0% 69.9° 29.99 in   8% 12 miles
23:00
5
  0% 69.9° 30.00 in   10% 12 miles
 05:58     20:20    Daylength: 14:21 Tomorrow
00:00
6
  0% 69.7° 30.02 in   13% 12 miles
01:00
6
  0% 69.3° 30.04 in   18% 12 miles
02:00
6
  0% 68.7° 30.04 in   22% 12 miles
03:00
5
  0% 68.0° 30.04 in   25% 12 miles
04:00
5
  0% 67.1° 30.05 in   24% 12 miles
05:00
5
  0% 66.1° 30.06 in   22% 11 miles
06:00
5
  0% 66.1° 30.07 in UV
UV Index: 1
21% 12 miles
07:00
5
  0% 66.7° 30.09 in UV
UV Index: 2
19% 12 miles
08:00
6
  0% 67.3° 30.11 in UV
UV Index: 3
18% 12 miles
09:00
6
  0% 67.9° 30.12 in UV
UV Index: 6
16% 12 miles
10:00
6
  0% 68.6° 30.11 in UV
UV Index: 8
12% 12 miles
11:00
Heat index:92F
6
  0% 69.5° 30.10 in UV
UV Index: 9
8% 13 miles
12:00
Heat index:95F
6
  0% 70.4° 30.08 in UV
UV Index: 9
4% 13 miles
13:00
Heat index:97F
6
  0% 71.0° 30.05 in UV
UV Index: 9
8% 13 miles
14:00
Heat index:98F
6
  0% 71.1° 30.04 in UV
UV Index: 7
13% 13 miles
15:00
Heat index:98F
6
  0% 70.7° 30.03 in UV
UV Index: 5
15% 14 miles
16:00
Heat index:97F
6
  0% 69.8° 30.03 in UV
UV Index: 3
14% 14 miles
17:00
Heat index:96F
6
  0% 68.6° 30.04 in UV
UV Index: 1
12% 14 miles
18:00
Heat index:94F
5
  0% 68.4° 30.04 in   11% 14 miles
19:00
5
  0% 69.2° 30.04 in   7% 13 miles
20:00
5
  0% 70.3° 30.04 in   4% 13 miles
21:00
5
  0% 70.9° 30.04 in   2% 13 miles
22:00
5
  0% 70.7° 30.04 in   4% 13 miles
23:00
6
  0% 70.3° 30.04 in   5% 12 miles
 05:59     20:19    Daylength: 14:20 Wednesday 26 Jul
00:00
6
  0% 70.1° 30.04 in   6% 12 miles
01:00
7
  0% 69.9° 30.04 in   2% 12 miles
02:00
6
  0% 70.0° 30.04 in   4% 12 miles
03:00
6
  0% 70.2° 30.02 in   7% 12 miles
04:00
6
  0% 70.3° 30.02 in   13% 12 miles
05:00
5
  0% 70.1° 30.02 in   18% 12 miles
Move the mouse over the values for info.

Script by nordicweather.net, snippets by Ken True from Saratoga Weather, Labbs from Lokaltvder.se and others.
Valid HTML5. Weathericons by Dotvoid
Powered by WXSIM & Highcharts