Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

Widespread Precipitation for the Western U.S. While Rain Returns to the Gulf Coast Region

Rain and mountain snow showers will continue across the Western U.S. for the next couple days. Meanwhile, moisture will increase over Texas and the Deep South where locally heavy rainfall and minor flooding will be possible through midweek. Also, high fire danger will continue in the southern High Plains on Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fog/Mist

57°F

14°C

Humidity 96%
Wind Speed E 6 mph
Barometer 29.99 in
Dewpoint 56°F (13°C)
Visibility 1.75 mi
Last update 27 Feb 10:15 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: A chance of rain before noon, then a chance of showers and thunderstorms after noon.  Patchy fog before noon.  Otherwise, mostly cloudy, with a high near 70. South wind 10 to 15 mph.  Chance of precipitation is 40%.

    Chance Rain
    and Patchy
    Fog then
    Chance
    T-storms

    High: 70 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 62. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 62 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Cloudy then
    Chance
    T-storms

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 50. South wind around 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Chance
    T-storms

    Low: 50 °F

  • Wednesday

    Wednesday: Sunny, with a high near 61. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Sunny

    High: 61 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 35. North northwest wind 5 to 10 mph becoming northeast after midnight.

    Mostly Clear

    Low: 35 °F

  • Thursday

    Thursday: Sunny, with a high near 63. East northeast wind around 5 mph becoming south southeast in the morning.

    Sunny

    High: 63 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 39. East southeast wind around 5 mph.

    Mostly Clear

    Low: 39 °F

  • Friday

    Friday: Sunny, with a high near 63. South southeast wind 5 to 10 mph.

    Sunny

    High: 63 °F

Detailed Forecast

Today
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 70. South wind 10 to 15 mph. Chance of precipitation is 40%.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 50. South wind around 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny, with a high near 61. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 35. North northwest wind 5 to 10 mph becoming northeast after midnight.
Thursday
Sunny, with a high near 63. East northeast wind around 5 mph becoming south southeast in the morning.
Thursday Night
Mostly clear, with a low around 39. East southeast wind around 5 mph.
Friday
Sunny, with a high near 63. South southeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 70.
Click Map For Forecast
Point Forecast:
Grayson County Airport TX
 33.73°N 96.68°W (Elev. 715 ft)
3:47 am CST Feb 27, 2017
10am CST Feb 27, 2017-6pm CST Mar 5, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database