NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sat, Aug 22, 2026 at 11:22:45 am CDT

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Heat Advisory

Saturday’s Outlook

Saturday Night's Outlook

The Outlook Ahead

Partial Lunar Eclipse

KHGX Radar.

A Heat Advisory remains in effect for peak heat index readings between 106°-112°F until 7 PM Sunday. This advisory may need to be extended into early next week.

Hot and humid with light to moderate south to southwest winds. Isolated thunderstorms are possible in the afternoon, primarily north of Interstate 10. Daytime highs inland from 99°F to 104°F with the beaches from 93°F to 98°F. The heat indices are anticipated between 106°F to 112°F.

Warm conditions to continue with light southwest winds and lows in the mid 70s to lower 80s.

Hot and humid conditions continue with high temperatures mostly in the 90s to triple digits. Max Heat indices are expected to reach 100-113 degrees. Isolated to scattered showers and storms are possible this weekend, with the best chances north of I-10. Please practice heat safety by checking on the elderly, children, and pets, staying cool and hydrated, and wearing light-weight, light-colored clothing.

Save the date for the Partial Lunar Eclipse, happening on August 27-28! You will be able to view the eclipse right here in SE TX with your own eyes, no eclipse glasses needed :) Look for the bright and shadowed parts of the moon, along with a copper/orange tint 🌕🌖🌗🌘

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	10:35	Clear	10	91	72	54	WSW 6	98 [HI]	30.09
College Station	10:53	Clear	10	92	71	50	W 7	99 [HI]	30.06
Caldwell	10:35	Clear	10	91	71	52	WNW 5	98 [HI]	30.08
Huntsville	10:53	Clear	10	94	69	44	SW 7	99 [HI]	30.07
Navasota	10:55	Clear	10	93	74	53	W 3	104 [HI]	30.05
Brenham	10:55	Clear	10	90	70	52	W 6	96 [HI]	30.06
Conroe	10:53	Clear	10	93	69	45	VRB 6	98 [HI]	30.06
Cleveland	10:55	Clear	10				W 3	-	30.07
Liberty	10:55	Clear	9	91	75	59	VRB 6	102 [HI]	30.04
Columbus	10:55	Clear	10	90	72	54	SSW 5	98 [HI]	30.07
Spring	10:53	Clear	7	89	75	63	NW 7	99 [HI]	30.06
Houston Intercontinental Aprt	10:53	Mostly Clear	10	91	73	55	W 9	100 [HI]	30.05
Katy/Brookshire	10:55	Clear	8	91	77	62	WNW 8	105 [HI]	30.07
Texas Medical Center Heliport	10:55	Clear	10	87	73	62	WNW 12	94 [HI]	30.05
Sugar Land	10:53	Clear	10	92	76	59	W 8	104 [HI]	30.05
Houston Hobby Airport	10:53	Partly Cloudy	10	90	75	61	VRB 6	101 [HI]	30.04
Arcola/Sienna	10:55	Clear	10	90	76	63	WNW 8	101 [HI]	30.06
Pearland	10:53	Clear	9	88	73	61	W 8	96 [HI]	30.06
Ellington Field	10:54	Clear	10	89	73	59	WSW 12	97 [HI]	30.03
La Porte	10:35	Clear	10	89	75	62	W 12	99 [HI]	30.05
Wharton	10:55	Clear	10	89	75	63	SW 8	99 [HI]	30.06
Angleton/Lake Jackson	10:53	Clear	10	90	76	63	SW 7	102 [HI]	30.05
Galveston	10:52	Clear	10	90	76	63	W 8	102 [HI]	30.05
Bay City	10:55	Clear	10	90	78	68	W 8	105 [HI]	30.00
Palacios	10:53	Clear	10	88	76	67	WSW 9	99 [HI]	30.04
Rig 20 Miles SE of Matagorda	11:00		10	84	78	83	WSW 9	95 [HI]	30.10

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