National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

43°F

6°C

Humidity 65%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 8 Dec 7:35 pm CST
Extended Forecast for

Lavon TX

  • Tonight

    Tonight: Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. Calm wind becoming south around 5 mph after midnight.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Tuesday

    Tuesday: Patchy frost before 8am. Otherwise, sunny, with a high near 62. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 62 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 44. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. South southwest wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. North northeast wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. South southwest wind around 5 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. South wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. South wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. North northeast wind around 10 mph.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. Calm wind becoming south around 5 mph after midnight.
Tuesday
Patchy frost before 8am. Otherwise, sunny, with a high near 62. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 44. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 63. South southwest wind 5 to 10 mph becoming north northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 39. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 64. South southwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 45. South wind around 5 mph.
Friday
Sunny, with a high near 66. South wind 5 to 10 mph becoming north northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 41. North northeast wind around 10 mph.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lavon TX
 33.03°N 96.43°W (Elev. 525 ft)
Last Update:
5:06 pm CST Dec 8, 2025
Forecast Valid:
7pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation