NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Tue, Aug 25, 2026 at 9:02:29 pm CDT

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Heat Advisory

Tuesday Night’s Outlook

The Outlook Ahead

Partial Lunar Eclipse

A Heat Advisory remains in effect for peak heat index readings between 106°-109°F until 7 PM Tuesday. This advisory may need to be extended later in the week.

Warm and humid with light southwest. Nighttime lows will be mainly in the upper 70s to lower 80s. Some lower clouds and isolated patch fog is possible near sunrise.

Hot and humid conditions continue with high temperatures mostly in the upper 90s to triple digits. Max Heat indices are expected to reach 106-112 degrees each day. Isolated to scattered showers and storms are expected during the second half of the week. Please continue to 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	20:15	Clear	10	94	67	42	S 6	97 [HI]	29.94
College Station	19:53	Clear	10	94	67	41	SSE 10	98 [HI]	29.93
Caldwell	20:15	Clear	10	93	64	38	S 7	95 [HI]	29.95
Huntsville	19:53	Clear	10	93	69	45	S 6	98 [HI]	29.94
Navasota	20:35	Mostly Cloudy	10	89	74	59	SSE 5	98 [HI]	29.92
Brenham	20:35	Clear	10	91	70	49	SSE 8	97 [HI]	29.94
Conroe	19:53	Clear	10	92	70	48	SSE 8	98 [HI]	29.95
Cleveland	20:35	Clear	10				SSE 3	-	29.97
Liberty	20:35	Clear	10	86	78	79	VRB 5	98 [HI]	29.96
Columbus	20:35	Clear	10	90	70	51	S 7	95 [HI]	29.97
Spring	19:53	Clear	9	92	75	57	S 6	103 [HI]	29.94
Houston Intercontinental Aprt	19:53	Mostly Cloudy	10	91	76	61	S 9	103 [HI]	29.94
Katy/Brookshire	20:35	Clear	10	89	73	59	S 13	97 [HI]	29.98
Texas Medical Center Heliport	20:35	Clear	10	87	73	62	S 17	94 [HI]	29.95
Sugar Land	18:53	Clear	10	93	76	57	SSE 14	106 [HI]	29.95
Houston Hobby Airport	19:53	Mostly Cloudy	10	90	75	61	S 10	101 [HI]	29.95
Arcola/Sienna	20:35	Clear	10	86	71	59	S 3	92 [HI]	29.98
Pearland	19:53	Clear	10	89	74	61	S 8	98 [HI]	29.98
Ellington Field	19:54	Partly Cloudy	10	87	73	62	SSE 12	94 [HI]	29.95
La Porte	20:35	Clear	10	87	73	62	SSW 9	94 [HI]	29.98
Wharton	20:35	Clear	10	85	70	60	SSE 8	-	29.98
Angleton/Lake Jackson	19:53	Clear	10	84	72	67	S 7	-	29.98
Galveston	19:52	Clear	10	87	77	72	SSW 12	99 [HI]	29.98
Bay City	20:35	Clear	10	83	76	80	S 8	91 [HI]	29.94
Palacios	19:53	Clear	10	86	75	69	SSE 10	95 [HI]	29.97
Rig 20 Miles SE of Matagorda	20:40		10	86	77	74	SSE 9	97 [HI]	30.03

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