Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

London Madison County Airport (KUYF)

Lat: 39.93°NLon: 83.46°WElev: 1083ft.

Overcast

36°F

2°C

Humidity 93%
Wind Speed SE 15 mph
Barometer 29.97 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 26 Dec 3:55 am EST
Extended Forecast for

2 Miles S South Vienna OH

  • Overnight

    Overnight: A chance of rain, mainly after 5am.  Cloudy, with a low around 34. Southeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Rain

  • Friday

    Friday: Rain.  Areas of fog between 9am and 3pm. High near 60. Southeast wind 10 to 16 mph becoming west in the afternoon.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Rain and
    Areas Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 47. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 1am.  Cloudy, with a low around 40. East wind 6 to 9 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers.  High near 62. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: Showers.  Low around 34. Chance of precipitation is 100%.

    Low: 34 °F

    Showers

  • Monday

    Monday: A chance of rain and snow showers before 1pm.  Mostly cloudy, with a high near 36. Breezy.  Chance of precipitation is 40%.

    High: 36 °F

    Chance
    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. Breezy.

    Low: 19 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A chance of rain, mainly after 5am. Cloudy, with a low around 34. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. Areas of fog between 9am and 3pm. High near 60. Southeast wind 10 to 16 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 36. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Saturday
Mostly cloudy, with a high near 47. Light and variable wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A chance of showers after 1am. Cloudy, with a low around 40. East wind 6 to 9 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers. High near 62. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 34. Chance of precipitation is 100%.
Monday
A chance of rain and snow showers before 1pm. Mostly cloudy, with a high near 36. Breezy. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 19. Breezy.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 17.
New Year's Day
Mostly cloudy, with a high near 26.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S South Vienna OH
 39.89°N 83.61°W (Elev. 1148 ft)
12:42 am EST Dec 26, 2025
4am EST Dec 26, 2025-6pm EST Jan 1, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database