O'Fallon (MO)
Today
Today weather in O'Fallon
Saturday, April 4th, 2026
17°
Moderate rain
Mild temperatures are expected in O'Fallon Today, peaking at around 17 °F and dropping to 6 °F by night. It'll be quite breezy in O'Fallon Today with average wind speeds of 27 km/h. Heavy showers are forecasted, reaching up to 13.36 mm.
17° / 7°
Temp
88%
Rain
27 km/h
Wind
78%
Humidity
O'Fallon Weather Pages
O'Fallon hourly forecast for today
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| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 06:42 AM | 07:00 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 07:29 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | |  |  | | |  |  | | |  | | |  | |  | |  | | |  |  | | | | Next |
| temperatures | 22.5° | 22.3° | 22.1° | 19.8° | 18.7° | 17.9° | 17.6° | Sunrise | 16.4° | 14.9° | 12.8° | 12.2° | 10.9° | 10.3° | 10.4° | 10.8° | 10.8° | 12° | 12.4° | 11.9° | 11.2° | Sunset | 10.5° | 8.9° | 7.7° | 6.9° | |
| feels like | 24.8° | 24.7° | 24.6° | 19.8° | 18.7° | 17.9° | 17.6° | 16.4° | 14.2° | 12.1° | 10° | 8.4° | 7.7° | 7.7° | 8.2° | 8° | 9.7° | 10.1° | 9.8° | 9° | 8° | 6.7° | 5.5° | 4.4° | |||
| wind speed | 23 km/h | 23 km/h | 19 km/h | 16 km/h | 19 km/h | 16 km/h | 13 km/h | 12 km/h | 16 km/h | 20 km/h | 21 km/h | 21 km/h | 24 km/h | 25 km/h | 26 km/h | 27 km/h | 27 km/h | 25 km/h | 23 km/h | 21 km/h | 19 km/h | 17 km/h | 14 km/h | 14 km/h | |||
| wind degree | 182° | 195° | 190° | 193° | 224° | 259° | 290° | 271° | 274° | 294° | 299° | 291° | 291° | 284° | 287° | 287° | 291° | 293° | 297° | 297° | 298° | 299° | 294° | 289° | |||
| wind direction | S | SSW | S | SSW | SW | W | WNW | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0.6 mm | 2.1 mm | 2.4 mm | 1.7 mm | 4 mm | 2.3 mm | 0.1 mm | 0 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 0% | 0% | 66% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 64% | 100% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 68% | 68% | 68% | 70% | 90% | 90% | 93% | 94% | 93% | 89% | 87% | 86% | 86% | 85% | 82% | 79% | 76% | 65% | 62% | 62% | 61% | 60% | 73% | 74% | |||
| dew point | 16.1° | 16° | 16° | 16.1° | 15.8° | 15.9° | 16.1° | 16.2° | 14.1° | 11.8° | 10.4° | 8.5° | 7.4° | 7.5° | 7.6° | 7.8° | 6.7° | 6.8° | 5.7° | 4.5° | 3.3° | 2.3° | 2.8° | 2.3° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 7 km | 7 km | 10 km | 10 km | 10 km | 14 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 0% | 0% | 0% | 76% | 96% | 75% | 72% | 100% | 100% | 100% | 97% | 100% | 86% | 100% | 100% | 49% | 100% | 67% | 87% | 100% | 61% | 24% | 1% | 0% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 1 | 1.4 | 3.3 | 4.6 | 4.6 | 3.7 | 3.4 | 2.3 | 1.5 | 0.5 | 0 | 0 | 0 | 0 | 0 |
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Weather in O'Fallon today
temperatures
17 °F
rain
13.4 mm
wind
27 km/h
UV
Low
O'Fallon daylight overview ☀️
Today in O'Fallon, The sun rises at 06:42 and sets at 19:29, giving a total daylight duration of 12 hours and 47 minutes.
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What to wear today in O'Fallon? clothing recommendations
Stay comfortably stylish - your tailored guide for today's O'Fallon forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather today in O'Fallon - FAQ
What is the maximum temperature for today in O'Fallon?
The maximum temperature for today in O'Fallon is expected to be 17° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in O'Fallon? 🌧️
Yes, there is a 88% chance of rain in O'Fallon today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in O'Fallon? 🌀
The wind in O'Fallon is expected to blow at 27 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in O'Fallon today?
Given the forecast of 17 °F with a 88% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in O'Fallon today.
What is the sunrise and sunset time for O'Fallon today?
The sun is expected to rise at 06:42 and set at 19:29 in O'Fallon.
How accurate is the weather forecast O'Fallon today? ✅
O'Fallon weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is O'Fallon?Get accurate weather forecasts for O'Fallon, located at latitude 38.811 and longitude -90.7. Stay updated with localized weather information tailored for O'Fallon.
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