Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northern Gulf Coast from the western Florida Panhandle to southeastern Louisiana through tonight. Read More >

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Last Map Update: Wed, Jul 22, 2026 at 3:14:25 pm CDT

Watches, Warnings & Advisories

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National Weather Service Austin/San Antonio, TX

National Weather Service Houston/Galveston, TX

National Weather Service Lake Charles, LA

Extreme Heat Warning

Heat Advisory

Air Quality Alert

Hazardous Weather Outlook

Extreme Heat Warning Wednesday

Dangerous Heat Today with Low Rain Chances

Dangerous Heat Continues All Week

Increased Risk of Heat Related Illness This Week

Wednesday Afternoon Update: The Extreme Heat Warning has been expanded to included Delta, Fannin, and Lamar Counties. Areas in the warning are expected to see heat index values up to 119 degrees this afternoon. A Heat Advisory also remains in effect for the far southwest parts of our forecast area as heat index values climb up to 108 degrees. Proper heat safety will be key to preventing heat related illnesses today!

Very isolated showers and storms may offer some brief relief from the heat for a handful of locations later this afternoon and evening. Most locations will remain dry and hot.

Dangerous heat is expected across the region this week, with high temperatures well into the 100s for many locations, and heat index values between 105-115 degrees. Ensure you take all necessary precautions to protect yourself from the heat. Drink plenty of water, limit time spent outdoors, and ensure you know the signs of heat related illness. A tropical system in the Gulf will bring increased moisture to the region later in the week and this weekend.

Dangerous heat is expected this week, which will increase the risk of heat related illnesses. Make sure you know the signs of heat exhaustion and heat stroke in order to protect yourself and others from the heat.