Today
During the day clear, up to +64°F, at night around +39°F. Wind gusts reach 7 mph. The day promises to be dry.
Weather outside your window in O'Fallon
local time 5:31 AM · updated just now
Today Now 5:31 AM
+39°F
Mostly clear
Hourly forecast
Today11/8
Temperature
Feels like
Cloudiness
Precip. chance
Precipitationin
Windmph
Wind gustsmph
Humidity
PressureinHg
Dew point
Visibilitymi
UV index
| Now | 6:00 AM | 7:00 AM | 8:00 AM | 9:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 1:00 PM | 2:00 PM | 3:00 PM | 4:00 PM |
|---|---|---|---|---|---|---|---|---|---|---|---|
Today
Forecast in words
Tomorrow
Tomorrow high +68°F and fog, nighttime low +45°F, 4° warmer.
Week
Seven days ahead fall within +30°F…+68°F. Peak warmth: Mon, +68°F. Coldest night — Sat, around +30°F. Wet days: Wed. Clear days — 6. It cools down by the end of the week.
Week vs norm
- Today 11/8 +64°F +5° usually +59°F
- Tomorrow 11/9 +68°F +9° usually +59°F
- Tue 11/10 +68°F +10° usually +58°F
- Wed 11/11 +64°F +7° usually +58°F
- Thu 11/12 +48°F −9° usually +57°F
- Fri 11/13 +43°F −14° usually +57°F
- Sat 11/14 +52°F −4° usually +56°F
- Sun 11/15 +43°F −13° usually +56°F
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, November 8
Today is a typical day for this date.
- Heat record +82°F 2023
- Cold record −6°F 1991
- Most precipitation 0.6 in 2011
- Strongest gust 35 mph 1996
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in O'Fallon
Today is about 5° warmer than usual for November.
| Month | Daytime / Nighttime | Average | 💧 in |
|---|---|---|---|
| Jan | +40°F / +25°F | +31°F | 2.7 |
| Feb | +46°F / +28°F | +35°F | 2.5 |
| Mar | +57°F / +37°F | +46°F | 3.8 |
| Apr | +68°F / +47°F | +56°F | 4.6 |
| May | +76°F / +58°F | +66°F | 5.0 |
| Jun | +85°F / +67°F | +75°F | 4.1 |
| Jul | +89°F / +71°F | +79°F | 3.5 |
| Aug | +88°F / +69°F | +78°F | 3.2 |
| Sep | +81°F / +61°F | +70°F | 3.2 |
| Oct | +70°F / +50°F | +59°F | 3.3 |
| Nov | +56°F / +39°F | +46°F | 3.5 |
| Dec | +45°F / +30°F | +36°F | 2.5 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
6:37 AM | 4:54 PM
Moon
6:06 AM | 4:14 PM
Moon phase
Waning crescent 0%
Next solar eclipse
Calculating for these coordinates…