Next update: July 18, 2019 4:25 pm
WXSIM Forecast for: O'Fallon
| Today |
Tonight |
Friday |
Friday night |
Saturday |
Saturday night |
Sunday |
Sunday night |
Monday |
9 |
7 |
8 |
6 |
6 |
5 |
8 |
7 |
6 |
| Conditions | Temperature | Wind | Precipitation | UV Index | Description and notes | |
| Today | 9 |
UV |
Partly cloudy in the morning, becoming sunny in the afternoon. Hot. Heat index: 105°. | |||
| Tonight | 7 |
Clear. Warm. | ||||
| Friday | 8 |
UV |
Sunny. Very hot. Heat index: 113°. | |||
| Friday night | 6 |
Clear. Moderate to dense fog after midnight. Warm. | ||||
| Saturday | 6 |
UV |
Sunny. Moderate to dense fog in the morning. Hot. Heat index: 115°. | |||
| Saturday night | 5 |
Clear in the evening, becoming partly cloudy after midnight. Moderate fog in the evening, then moderate to dense fog after midnight. | ||||
| Sunday | 8 |
<0.1 in PoP: 20% |
UV |
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. A slight chance of rain. Scattered thundershowers possible. Heat index: 95°. Precipitation less than a tenth of an inch. | ||
| Sunday night | 7 |
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Moderate to dense fog. | ||||
| Monday | 6 |
<0.1 in PoP: 30% |
UV |
Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. A chance of rain. Precipitation less than a tenth of an inch. | ||
| Monday night | 5 |
Mostly clear in the evening, becoming clear after midnight. Moderate fog in the evening, then moderate to dense fog after midnight. Relatively cool. | ||||
| Tuesday | 7 |
UV |
Sunny. Moderate to dense fog in the morning. | |||
| Tuesday night | 3 |
Clear. Patchy light fog in the evening, then moderate fog after midnight. Relatively cool. | ||||
| Wednesday | 3 |
UV |
Sunny. Moderate fog in the morning. | |||
| Wednesday night | 2 |
Clear. Light to moderate fog after midnight. Relatively cool. | ||||
| Move the mouse over the values for info. | ||||||
| Conditions | Temperature | Wind | Precipitation | Pressure | UV Index | Description and notes | ||
| 05:52 20:26 Daylength: 14:33 Today | ||||||||
| 15:00 | Heat index:108°F |
9 |
29.81 in | UV |
Sunny. |
|||
| 18:00 | Heat index:108°F |
7 |
29.81 in | Sunny. |
||||
| 21:00 | Heat index:99°F |
7 |
29.82 in | Clear. |
||||
| 05:53 20:25 Daylength: 14:32 Tomorrow | ||||||||
| 00:00 | 7 |
29.83 in | Clear. |
|||||
| 03:00 | 7 |
29.83 in | Clear. |
|||||
| 06:00 | 7 |
29.86 in | UV |
Sunny. |
||||
| 09:00 | Heat index:100°F |
9 |
29.91 in | UV |
Sunny. |
|||
| 12:00 | Heat index:107°F |
9 |
29.88 in | UV |
Sunny. |
|||
| 15:00 | Heat index:108°F |
8 |
29.84 in | UV |
Sunny. |
|||
| 18:00 | Heat index:108°F |
6 |
29.85 in | Sunny. |
||||
| 21:00 | Heat index:99°F |
6 |
29.85 in | Clear. Light fog. |
||||
| 05:54 20:24 Daylength: 14:30 Saturday 20 Jul | ||||||||
| 00:00 | 7 |
29.86 in | Clear. Moderate fog. |
|||||
| 03:00 | 6 |
29.87 in | Clear. |
|||||
| 06:00 | 5 |
29.90 in | UV |
Sunny. Moderate fog. |
||||
| 09:00 | 5 |
29.92 in | UV |
Sunny. Moderate fog. |
||||
| 12:00 | Heat index:104°F |
6 |
29.89 in | UV |
Sunny. |
|||
| 15:00 | Heat index:105°F |
6 |
29.85 in | UV |
Sunny. |
|||
| 18:00 | Heat index:105°F |
4 |
29.84 in | Sunny. |
||||
| 21:00 | Heat index:99°F |
5 |
29.85 in | Clear. Moderate fog. |
||||
| 05:54 20:23 Daylength: 14:29 Sunday 21 Jul | ||||||||
| 00:00 | 7 |
29.85 in | Partly cloudy. |
|||||
| 03:00 | 6 |
0.02 in | 29.87 in | Mostly cloudy. Light rain showers. |
||||
| 06:00 | 7 |
29.91 in | UV |
Mostly cloudy. |
||||
| 09:00 | 7 |
29.90 in | UV |
Mostly cloudy. |
||||
| 12:00 | 10 |
29.91 in | UV |
Cloudy. |
||||
| 15:00 | 7 |
29.91 in | UV |
Mostly cloudy. |
||||
| 18:00 | 8 |
29.94 in | Partly cloudy. Moderate fog. |
|||||
| 21:00 | 7 |
29.98 in | Mostly clear. Moderate fog. |
|||||
| 05:55 20:23 Daylength: 14:27 Monday 22 Jul | ||||||||
| 00:00 | 7 |
30.00 in | Mostly clear. Moderate fog. |
|||||
| 03:00 | 7 |
30.01 in | Partly cloudy. Moderate fog. |
|||||
| 06:00 | 4 |
0.01 in | 30.04 in | UV |
Mostly cloudy. Light rain showers. |
|||
| 09:00 | 5 |
0.03 in | 30.09 in | UV |
Mostly cloudy. Light rain showers. |
|||
| 12:00 | 5 |
0.01 in | 30.09 in | UV |
Partly cloudy. Light rain showers. |
|||
| 15:00 | 8 |
30.05 in | UV |
Mostly sunny. |
||||
| 18:00 | 7 |
30.06 in | Mostly sunny. |
|||||
| 21:00 | 5 |
30.12 in | Mostly clear. Moderate fog. |
|||||
| 05:56 20:22 Daylength: 14:25 Tuesday 23 Jul | ||||||||
| 00:00 | 5 |
30.15 in | Mostly clear. |
|||||
| 03:00 | 4 |
30.15 in | Clear. |
|||||
| 06:00 | 4 |
30.18 in | UV |
Sunny. Moderate fog. |
||||
| 09:00 | 6 |
30.20 in | UV |
Sunny. Light fog. |
||||
| 12:00 | 8 |
30.17 in | UV |
Sunny. |
||||
| 15:00 | 8 |
30.13 in | UV |
Sunny. |
||||
| 18:00 | 5 |
30.12 in | Sunny. |
|||||
| 21:00 | 3 |
30.15 in | Clear. Moderate fog. |
|||||
| 05:57 20:21 Daylength: 14:24 Wednesday 24 Jul | ||||||||
| 00:00 | 3 |
30.15 in | Clear. Moderate fog. |
|||||
| 03:00 | 3 |
30.15 in | Clear. Moderate fog. |
|||||
| 06:00 | 2 |
30.18 in | UV |
Sunny. Moderate fog. |
||||
| 09:00 | 4 |
30.19 in | UV |
Sunny. |
||||
| 12:00 | 4 |
30.16 in | UV |
Sunny. |
||||
| 15:00 | 4 |
30.12 in | UV |
Sunny. |
||||
| 18:00 | 3 |
30.11 in | Sunny. |
|||||
| Move the mouse over the values for info. | ||||||||
| Conditions | Temperature | Wind | Precipitation | Thunderstorm probability | Dewpoint | Pressure | UV Index | Cloud cover | Visibility | |
| 05:52 20:26 Daylength: 14:33 Today | ||||||||||
| 14:00 | Heat index:108°F |
9 |
20-40% | 75.5° | 29.82 in | UV |
5% | 13 miles | ||
| 15:00 | Heat index:108°F |
9 |
20-40% | 75.4° | 29.81 in | UV |
1% | 13 miles | ||
| 16:00 | Heat index:108°F |
9 |
20-40% | 74.4° | 29.81 in | UV |
0% | 13 miles | ||
| 17:00 | Heat index:106°F |
8 |
20-40% | 73.6° | 29.81 in | UV |
0% | 13 miles | ||
| 18:00 | Heat index:103°F |
7 |
20-40% | 72.5° | 29.81 in | 0% | 13 miles | |||
| 19:00 | Heat index:99°F |
7 |
20-40% | 72.1° | 29.82 in | 0% | 13 miles | |||
| 20:00 | 7 |
20-40% | 72.0° | 29.82 in | 0% | 12 miles | ||||
| 21:00 | 7 |
<20% | 72.0° | 29.82 in | 0% | 12 miles | ||||
| 22:00 | 7 |
<20% | 72.5° | 29.83 in | 0% | 12 miles | ||||
| 23:00 | 7 |
<20% | 73.1° | 29.83 in | 0% | 12 miles | ||||
| 05:53 20:25 Daylength: 14:32 Tomorrow | ||||||||||
| 00:00 | 7 |
<20% | 73.4° | 29.83 in | 0% | 12 miles | ||||
| 01:00 | 7 |
<20% | 73.3° | 29.83 in | 0% | 11 miles | ||||
| 02:00 | 7 |
<20% | 73.2° | 29.83 in | 0% | 11 miles | ||||
| 03:00 | 7 |
0% | 72.8° | 29.83 in | 0% | 11 miles | ||||
| 04:00 | 7 |
0% | 72.5° | 29.83 in | 0% | 11 miles | ||||
| 05:00 | 6 |
0% | 72.9° | 29.84 in | 0% | 11 miles | ||||
| 06:00 | 7 |
<20% | 73.5° | 29.86 in | UV |
0% | 11 miles | |||
| 07:00 | 7 |
<20% | 74.3° | 29.88 in | UV |
0% | 11 miles | |||
| 08:00 | 8 |
<20% | 74.9° | 29.90 in | UV |
0% | 11 miles | |||
| 09:00 | Heat index:100°F |
9 |
<20% | 75.4° | 29.91 in | UV |
0% | 11 miles | ||
| 10:00 | Heat index:103°F |
10 |
<20% | 75.5° | 29.91 in | UV |
0% | 11 miles | ||
| 11:00 | Heat index:105°F |
10 |
<20% | 75.3° | 29.90 in | UV |
0% | 11 miles | ||
| 12:00 | Heat index:107°F |
9 |
20-40% | 75.2° | 29.88 in | UV |
0% | 12 miles | ||
| 13:00 | Heat index:108°F |
9 |
20-40% | 75.1° | 29.85 in | UV |
0% | 12 miles | ||
| 14:00 | Heat index:108°F |
9 |
20-40% | 74.8° | 29.84 in | UV |
0% | 12 miles | ||
| 15:00 | Heat index:108°F |
8 |
20-40% | 74.7° | 29.84 in | UV |
0% | 12 miles | ||
| 16:00 | Heat index:108°F |
8 |
20-40% | 73.9° | 29.84 in | UV |
0% | 12 miles | ||
| 17:00 | Heat index:106°F |
7 |
20-40% | 73.2° | 29.84 in | UV |
0% | 12 miles | ||
| 18:00 | Heat index:103°F |
6 |
20-40% | 72.5° | 29.85 in | 0% | 11 miles | |||
| 19:00 | Heat index:99°F |
6 |
20-40% | 72.6° | 29.85 in | 0% | 11 miles | |||
| 20:00 | 6 |
<20% | 72.9° | 29.85 in | 0% | 11 miles | ||||
| 21:00 | 6 |
<20% | 73.1° | 29.85 in | 0% | 11 miles | ||||
| 22:00 | 6 |
<20% | 73.6° | 29.85 in | 0% | 5.7 miles | ||||
| 23:00 | 7 |
<20% | 74.0° | 29.85 in | 0% | 2.1 miles | ||||
| 05:54 20:24 Daylength: 14:30 Saturday 20 Jul | ||||||||||
| 00:00 | 7 |
<20% | 74.2° | 29.86 in | 0% | 0.8 miles | ||||
| 01:00 | 7 |
<20% | 74.3° | 29.87 in | 0% | 0.3 miles | ||||
| 02:00 | 6 |
<20% | 74.5° | 29.87 in | 0% | 0.2 miles | ||||
| 03:00 | 6 |
<20% | 74.6° | 29.87 in | 0% | 0.2 miles | ||||
| 04:00 | 6 |
<20% | 74.5° | 29.88 in | 0% | 0.2 miles | ||||
| 05:00 | 5 |
<20% | 74.0° | 29.89 in | 0% | 0.2 miles | ||||
| 06:00 | 5 |
<20% | 73.9° | 29.90 in | 0% | 0.2 miles | ||||
| 07:00 | 5 |
<20% | 74.3° | 29.91 in | UV |
0% | 0.2 miles | |||
| 08:00 | 5 |
0% | 74.9° | 29.92 in | UV |
0% | 0.3 miles | |||
| 09:00 | 5 |
0% | 75.1° | 29.92 in | UV |
0% | 5.9 miles | |||
| 10:00 | 6 |
<20% | 75.1° | 29.92 in | UV |
0% | 9.8 miles | |||
| 11:00 | Heat index:101°F |
6 |
<20% | 74.7° | 29.91 in | UV |
0% | 9.9 miles | ||
| 12:00 | Heat index:104°F |
6 |
<20% | 74.2° | 29.89 in | UV |
0% | 10 miles | ||
| 13:00 | Heat index:105°F |
6 |
<20% | 73.7° | 29.87 in | UV |
0% | 10 miles | ||
| Move the mouse over the values for info. | ||||||||||
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