Updated: February 21, 2019 4:25 pm
Next update: February 22, 2019 5:25 am

WXSIM Forecast for: O'Fallon

Tonight


Thursday


Thursday
night


Friday


Friday
night


80% Saturday


Saturday
night


Sunday


Sunday
night











5
2
4
7
5
10
25
19
8

Temperature/Precipitation/PressureThunder/Dewpoint/Pressure UV/Solar radiation Wind Max/min temperature
  Conditions Temperature Wind Precipitation UV Index Description and notes
Tonight
5
  Partly to mostly cloudy in the evening, becoming partly cloudy after midnight.
Thursday
2
  Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon.
Thursday night
4
  Mostly cloudy.
Friday
7
  Mostly cloudy to cloudy.
Friday night
5
<0.1 in
PoP: 20%
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A slight chance of rain. Precipitation less than a tenth of an inch.
Saturday
10
1 in
PoP: 80%
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog. A chance of rain in the morning, then rain likely in the afternoon.
Scattered thundershowers possible. Relatively mild. Precipitation mostly around an inch.
Saturday night
25
  Fair in the evening, becoming mostly cloudy after midnight. Windy.
Sunday
19
  UV
UV Index: 4
Partly to mostly sunny in the morning, becoming sunny in the afternoon. Windy.
Sunday night
8
  Clear.
Monday
4
  Mostly sunny in the morning, becoming partly to mostly sunny in the afternoon.
Monday night
7
  Mostly clear in the evening, becoming clear after midnight. Wind chill ranging from 23 to 33.
Tuesday
12
  UV
UV Index: 4
Sunny. Breezy and mild.
Tuesday night
13
  Mostly cloudy to cloudy in the evening, becoming cloudy after midnight.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Pressure UV Index Description and notes
 06:46     17:46    Daylength: 11:00 Wednesday 20 Feb
06:00
5
  30.31 in UV
UV Index: 1
Mostly cloudy.
09:00
6
  30.33 in UV
UV Index: 3
Mostly cloudy.
12:00
8
  30.27 in UV
UV Index: 3
Mostly cloudy.
15:00
7
  30.18 in UV
UV Index: 1
Mostly cloudy.
18:00
7
  30.16 in   Mostly cloudy.
21:00
6
  30.12 in   Mostly cloudy.
 06:44     17:48    Daylength: 11:03 Thursday 21 Feb
00:00
4
0.02 in 30.03 in   Cloudy.
Light rain.
03:00
4
0.01 in 29.93 in   Cloudy.
Light rain.
06:00
5
0.05 in 29.83 in   Cloudy.
Light rain.
09:00
5
0.31 in 29.75 in UV
UV Index: 1
Cloudy.
Light rain.
12:00
5
0.44 in 29.59 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
15:00
13
0.02 in 29.39 in UV
UV Index: 1
Mostly cloudy.
Light rain showers.
18:00
18
  29.34 in   Mostly clear.
21:00
21
  29.36 in   Partly cloudy.
 06:43     17:49    Daylength: 11:05 Today
00:00
27
  29.49 in   Mostly cloudy.
03:00
24
  29.72 in   Mostly cloudy.
06:00
19
  29.89 in UV
UV Index: 1
Partly cloudy.
09:00
20
  30.03 in UV
UV Index: 4
Sunny.
12:00
20
  30.10 in UV
UV Index: 4
Sunny.
15:00
19
  30.14 in UV
UV Index: 2
Sunny.
18:00
12
  30.25 in   Clear.
21:00
11
  30.37 in   Clear.
 06:42     17:50    Daylength: 11:08 Tomorrow
00:00
9
  30.44 in   Clear.
03:00
7
  30.50 in   Clear.
06:00
4
  30.54 in UV
UV Index: 1
Clear.
09:00
3
  30.60 in UV
UV Index: 4
Sunny.
12:00
2
  30.56 in UV
UV Index: 4
Sunny.
15:00
5
  30.46 in UV
UV Index: 2
Sunny.
18:00
6
  30.43 in   Clear.
21:00
7
  30.41 in   Clear.
 06:40     17:51    Daylength: 11:10 Sunday 24 Feb
00:00
7
  30.38 in   Clear.
03:00
7
  30.34 in   Clear.
06:00
9
  30.27 in UV
UV Index: 1
Clear.
09:00
14
  30.22 in UV
UV Index: 4
Sunny.
12:00
15
  30.14 in UV
UV Index: 4
Sunny.
15:00
12
  30.04 in UV
UV Index: 2
Mostly sunny.
18:00
6
  30.07 in   Cloudy.
Move the mouse over the values for info.
  Conditions Temperature Wind Precipitation Thunderstorm probability Dewpoint Pressure UV Index Cloud cover Visibility
 06:46     17:46    Daylength: 11:00 Wednesday 20 Feb
04:00
5
  0% 29.7° 30.31 in   34% 215 miles
05:00
5
  0% 29.3° 30.30 in   40% 215 miles
06:00
5
  0% 28.9° 30.31 in   54% 215 miles
07:00
5
  0% 28.6° 30.31 in   68% 215 miles
08:00
6
  0% 29.3° 30.32 in UV
UV Index: 1
77% 215 miles
09:00
6
  0% 31.0° 30.33 in UV
UV Index: 1
80% 315 miles
10:00
6
  0% 32.1° 30.33 in UV
UV Index: 2
83% 315 miles
11:00
6
  0% 33.2° 30.31 in UV
UV Index: 3
85% 415 miles
12:00
8
  0% 34.1° 30.27 in UV
UV Index: 3
81% 415 miles
13:00
7
  0% 34.5° 30.24 in UV
UV Index: 3
77% 415 miles
14:00
7
  0% 34.8° 30.21 in UV
UV Index: 2
75% 415 miles
15:00
7
  0% 35.0° 30.18 in UV
UV Index: 1
80% 415 miles
16:00
7
  0% 35.4° 30.17 in UV
UV Index: 1
84% 315 miles
17:00
7
  0% 35.6° 30.16 in   86% 315 miles
18:00
7
  0% 35.9° 30.16 in   82% 315 miles
19:00
7
  0% 36.4° 30.15 in   77% 214 miles
20:00
7
  0% 37.1° 30.14 in   74% 210 miles
21:00
6
  0% 37.7° 30.12 in   80% 207 miles
22:00
5
  0% 38.3° 30.09 in   86% 207 miles
23:00
4
  <20% 38.9° 30.07 in   91% 206 miles
 06:44     17:48    Daylength: 11:03 Thursday 21 Feb
00:00
4
0.01 in <20% 39.5° 30.03 in   95% 206 miles
01:00
4
  <20% 40.0° 30.00 in   98% 206 miles
02:00
4
0.01 in 20-40% 40.6° 29.97 in   100% 207 miles
03:00
4
  20-40% 41.1° 29.93 in   100% 306 miles
04:00
5
0.01 in 20-40% 41.7° 29.90 in   100% 306 miles
05:00
5
  20-40% 42.3° 29.87 in   100% 305 miles
06:00
5
  20-40% 42.9° 29.83 in   100% 303 miles
07:00
5
  20-40% 43.8° 29.80 in   100% 303 miles
08:00
5
0.05 in 20-40% 45.0° 29.78 in   100% 303 miles
09:00
5
0.07 in 20-40% 46.4° 29.75 in UV
UV Index: 1
100% 204 miles
10:00
4
0.06 in 20-40% 47.2° 29.72 in UV
UV Index: 1
100% 205 miles
11:00
4
0.18 in 20-40% 47.7° 29.67 in UV
UV Index: 1
100% 101 miles
12:00
5
0.20 in 20-40% 48.7° 29.59 in UV
UV Index: 1
95% 101 miles
13:00
7
0.19 in 20-40% 50.3° 29.51 in UV
UV Index: 1
89% 102 miles
14:00
10
0.05 in 20-40% 52.5° 29.43 in UV
UV Index: 1
83% 105 miles
15:00
13
0.01 in <20% 54.0° 29.39 in UV
UV Index: 1
61% 109 miles
16:00
15
0.01 in 0% 53.2° 29.36 in UV
UV Index: 1
38% 112 miles
17:00
17
  0% 49.8° 29.34 in   15% 115 miles
18:00
18
  0% 46.2° 29.34 in   9% 116 miles
19:00
19
  0% 42.9° 29.34 in   5% 117 miles
20:00
20
  0% 39.9° 29.34 in   4% 118 miles
21:00
21
  0% 37.7° 29.36 in   13% 119 miles
22:00
24
  0% 37.0° 29.39 in   22% 120 miles
23:00
26
  0% 36.7° 29.42 in   36% 121 miles
 06:43     17:49    Daylength: 11:05 Today
00:00
27
  0% 36.3° 29.49 in   56% 122 miles
01:00
26
  0% 35.5° 29.57 in   76% 122 miles
02:00
25
  0% 34.2° 29.65 in   86% 122 miles
03:00
24
  0% 33.0° 29.72 in   83% 122 miles
Move the mouse over the values for info.

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