Grayson County OEM
06/13/2026
☀️Weekend Weather Update 06/13-06/14☀️
Heat index values today (Saturday) should remain below advisory criteria, but may still reach 100 to 105 degrees during the afternoon. Take heat precautions if spending time outdoors.
Rain chances return on Sunday as scattered showers and storms are expected to form along a passing cold front. Strong wind gusts, as well as occasional lightning are the main hazards.
Stay weather aware. Take breaks from the heat, stay hydrated, wear sunscreen.
Images depict high temperatures on Saturday, heat safety tips, and rain chances on Sunday.
06/12/2026
☔️Upcoming Storms June 12-14☔️
Scattered storms are possible from this morning into the afternoon, some of which may produce frequent lightning and strong downburst wind gusts.
On Saturday we could see afternoon heat index values between 99 and 105 degrees. Stay hydrated, take frequent breaks, and limiting strenuous activity during outside activities.
Rain and thunderstorm chances will increase Sunday into Monday as a cold front moves into the area. Some storms could produce strong downburst wind gusts and frequent lightning, along with locally heavy rainfall and flooding.
Images depict storm chances on Friday, heat risk on Saturday, and storm chances on Sunday.
06/12/2026
🚧Traffic Alert US 75 SB June 12-13🚧
Upcoming nightly full closure of the US 75 SB frontage road beginning at 8 p.m. until 5 a.m. on June 12 until June 13.
The US 75 SB frontage road motorists will be detoured at Cornerstone Drive. Motorists will follow the marked detour.
Image depicts text saying, “Known before you go.”
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Address
Grayson County Courthouse-On-The-Square, 100 W Houston, 3rd Floor
Sherman, TX
75090