Today
Expect mostly clear. Daytime high +46°F, overnight low +41°F. Light wind, up to 4 mph. No rain expected.
Weather outside your window in O'Fallon
local time 5:04 PM · updated just now
Today Now 5:04 PM
+46°F
Mostly clear
Hourly forecast
Today11/7
Temperature
Feels like
Cloudiness
Precip. chance
Precipitationin
Windmph
Wind gustsmph
Humidity
PressureinHg
Dew point
Visibilitymi
UV index
| Now | 6:00 PM | 7:00 PM | 8:00 PM | 9:00 PM | 10:00 PM | 11:00 PM | 12:00 AM | 1:00 AM | 2:00 AM | 3:00 AM | 4:00 AM |
|---|---|---|---|---|---|---|---|---|---|---|---|
Today
Forecast in words
Tomorrow
Tomorrow mostly clear, high +63°F, low +37°F, about 16° warmer.
Week
Seven days ahead fall within +30°F…+68°F. Weekly maximum — +68°F (Tue). Coldest night — Sat, around +30°F. Days with precipitation — Wed. Sunshine expected on 6 of seven days. Colder closer to the weekend.
Week vs norm
- Today 11/7 +46°F −13° usually +60°F
- Tomorrow 11/8 +63°F +3° usually +59°F
- Mon 11/9 +66°F +7° usually +59°F
- Tue 11/10 +68°F +10° usually +58°F
- Wed 11/11 +66°F +8° usually +58°F
- Thu 11/12 +52°F −6° usually +57°F
- Fri 11/13 +45°F −12° usually +57°F
- Sat 11/14 +52°F −5° usually +56°F
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, November 7
Today is cooler than usual for this date.
- Heat record +78°F 2023
- Cold record +18°F 1991
- Most precipitation 2.4 in 1996
- Strongest gust 30 mph 1996
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in O'Fallon
Today is about 13° colder than usual for November.
| Month | Daytime / Nighttime | Average | 💧 in |
|---|---|---|---|
| Jan | +40°F / +26°F | +32°F | 3.1 |
| Feb | +46°F / +29°F | +36°F | 2.7 |
| Mar | +57°F / +38°F | +46°F | 4.1 |
| Apr | +68°F / +48°F | +57°F | 4.9 |
| May | +77°F / +59°F | +67°F | 5.2 |
| Jun | +85°F / +68°F | +76°F | 4.2 |
| Jul | +89°F / +71°F | +79°F | 3.8 |
| Aug | +88°F / +69°F | +78°F | 3.1 |
| Sep | +82°F / +62°F | +71°F | 3.3 |
| Oct | +70°F / +51°F | +59°F | 3.5 |
| Nov | +56°F / +39°F | +47°F | 3.6 |
| Dec | +45°F / +31°F | +37°F | 2.9 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
6:33 AM | 4:52 PM
Moon
4:57 AM | 3:43 PM
Moon phase
Waning crescent 2%
Next solar eclipse
Calculating for these coordinates…