OFallon, Mo

Current Weather Conditions   -   04/04/2026 09:40:00 AM

Weewx uptime: 311 days, 16 hours, 28 minutes   -   Server uptime: 311 days, 16 hours, 49 minutes
Current Conditions
Outside Temperature 53.3°F
Wind Chill 53.3°F
Heat Index 53.3°F
Dewpoint 50.9°F
Humidity 92%
Barometer 29.987 inHg
Barometer Trend (3 hours) 0.077 inHg
Wind 6 mph from 327° (NNW)
Rain Rate 0.00 in/hr
UV 0.8
ET 0.00 in
Solar Radiation 114 W/m²

 

Since Midnight
High Temperature
Low Temperature 		76.1°F at 12:13:24 AM
53.0°F at 08:58:14 AM
High Heat Index
Low Wind Chill 		76.1°F at 12:13:24 AM
53.1°F at 09:00:00 AM
High Humidity
Low Humidity 		95% at 07:57:16 AM
64% at 02:53:20 AM
High Dewpoint
Low Dewpoint 		64.9°F at 02:12:22 AM
50.7°F at 09:16:16 AM
High Barometer
Low Barometer 		29.988 inHg at 09:39:15 AM
29.821 inHg at 02:10:22 AM
Today's Rain
Rate		 0.52 in
0.32 in/hr at 05:51:17 AM
High Wind 24 mph from 306° at 03:02:57 AM
Average/RMS Wind 6 mph / 7 mph
Avg Speed / Direction 4 mph / 259°
High UV
Low UV 		0.9 at 09:39:15 AM
0.0 at 12:00:25 AM
High ET
Low ET 		0.00 in at 03:20:00 AM
0.00 in at 07:20:00 AM
High Radiation
Low Radiation 		124 W/m² at 09:24:15 AM
0 W/m² at 12:00:25 AM

 

Radar

Click image for expanded radar loop

Radar
temperatures heatchill wind Hi Wind Wind Vector barometer rain Radiation UV Index
Today's Almanac
Sun
Start civil twilight: 06:15:00 AM
Sunrise: 06:42:22 AM
Transit: 01:05:38 PM
Sunset: 07:29:33 PM
End civil twilight: 07:57:00 PM
Azimuth: 111.7°
Altitude: 33.2°
Right ascension: 13.7°
Declination: 5.8°
Solstice: 06/21/2026 03:24:28 AM
Equinox: 09/22/2026 07:05:06 PM
Moon
Rise: 10:31:07 PM
Transit: 02:36:12 AM
Set: 07:37:16 AM
Azimuth: 261.2°
Altitude: -23.1°
Right ascension: 218.8°
Declination: -20.8°
New moon: 04/17/2026 06:51:41 AM
Full moon: 05/01/2026 12:23:03 PM
Phase: Waning gibbous
(94% full)
About this weather station:
Location
Latitude: 38° 45.96' N Longitude: 090° 41.37' W Altitude: 514 feet

This station uses a WeatherFlow, controlled by 'weewx', an experimental weather software system written in Python. Weewx was designed to be simple, fast, and easy to understand by leveraging modern software concepts.

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