Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Modesto City-County Airport - Harry Sham Field (KMOD)

Lat: 37.62549° N Lon: 120.9549° W Elev: 85.0 ft.

Fog

41°F

5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 41°F (5°C)
Visibility 0.25 mi
Last update 30 Dec 06:53 AM PST
Detailed forecast for

Northern San Joaquin Valley

Today
Mostly cloudy in the morning then becoming partly cloudy. Widespread fog...locally dense in the morning. Patchy dense fog in the afternoon. Highs 47 to 54. Light winds.
Tonight
Cloudy. Patchy fog in the evening. Widespread fog after midnight. Lows around 44. Light winds.
Wednesday
Cloudy. Widespread fog...locally dense in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs around 50. Southeast winds up to 10 mph.
Wednesday Night
Rain. Lows around 49. Southeast winds up to 10 mph.
New Years Day
Rain. Highs around 56. Southeast winds up to 15 mph.
Thursday Night
Mostly cloudy with rain likely. Lows 51 to 56.
Friday
Mostly cloudy with rain likely. Highs around 56.
Friday Night
Rain. Lows 45 to 52.
Saturday
Rain likely. Highs 50 to 56.
Saturday Night
Cloudy with a chance of rain. Lows 43 to 48.
Sunday Through Monday
Mostly cloudy with a chance of rain. Highs around 53. Lows 42 to 48.



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700 AM PST Tue Dec 30 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database