Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

48°F

9°C

Humidity 32%
Wind Speed S 10 mph
Barometer 30.25 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 Dec 4:50 pm CST
Extended Forecast for

Collinsville TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. South wind around 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. South wind around 5 mph.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. South wind 5 to 10 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. South southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. North wind around 5 mph becoming calm  in the evening.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South wind around 5 mph.
Tuesday
Partly sunny, with a high near 59. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 45. South wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 64. South wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 52. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 63. South southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 58. Light and variable wind becoming south 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 48. South wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Collinsville TX
 33.57°N 96.9°W (Elev. 722 ft)
11:21 am CST Dec 15, 2025
5pm CST Dec 15, 2025-6pm CST Dec 22, 2025
 
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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