FNUS54 KHGX 182025 FWFHGX Fire Weather Planning Forecast for Southeast Texas National Weather Service Houston/Galveston TX 325 PM CDT Mon May 18 2026 .DISCUSSION... Gusty southeast winds in the 15 to 25 mph range are expected for most of the region through early this evening. Another breezy day is expected on Tuesday with gusts in the 15 to 20 mph range. Minimum afternoon RH values are expected to be in the 50 to 70 percent range throughout most of the week. Isolated to widely scattered showers and storms possible throughout the day, followed by higher chances of showers and storms Tuesday and beyond. TXZ163-164-190915- Houston-Trinity- Including the cities of Crockett, Groveton, and Trinity 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Pcldy Mcldy Precip Type Showers Tstms Tstms Tstms Chance Precip (%) 20 40 60 90 Chance of Thunder (%) 0 40 50 50 Temp (24h trend) 75 (-1) 90 (+2) 70 83 RH % (24h trend) 94 (+2) 57 (-6) 100 78 Wind 20ft/early(mph) SE 12 S 6 Lgt/Var Lgt/Var Wind 20ft/late(mph) S 6 S 8 G17 Lgt/Var Lgt/Var Max/Min Mix Hgt(m) 1470 660 Max/Min Mix Hgt(ft) 4820 2180 Transport Wnd (kts) S 14 SE 6 Transport Wnd (m/s) S 7 SE 3 Vent Rate (m/s-m) 10290 1980 Category Day 4 1 Sunshine Hours 5 3 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ176-195>198-190915- Brazos-Burleson-Grimes-Madison-Washington- Including the cities of Brenham, Bryan, Caldwell, College Station, Madisonville, Navasota, and Somerville 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Pcldy Mcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 30 70 90 Chance of Thunder (%) 0 30 50 50 Temp (24h trend) 76 (-1) 88 (-1) 72 83 RH % (24h trend) 90 (-2) 61 (-1) 98 77 Wind 20ft/early(mph) SE 14 S 10 G17 SE 6 Lgt/Var Wind 20ft/late(mph) S 9 G17 SE 11 SE 5 Lgt/Var Max/Min Mix Hgt(m) 1510 1080 Max/Min Mix Hgt(ft) 4940 3530 Transport Wnd (kts) S 15 SE 9 Transport Wnd (m/s) S 8 SE 5 Vent Rate (m/s-m) 12080 5400 Category Day 4 3 Sunshine Hours 5 3 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ177>179-199-200-190915- Montgomery-Northern Liberty-Polk-San Jacinto-Walker- Including the cities of Cleveland, Coldspring, Conroe, Corrigan, Dayton, Huntsville, Liberty, Livingston, Shepherd, and The Woodlands 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Pcldy Mcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 30 60 90 Chance of Thunder (%) 0 30 50 50 Temp (24h trend) 76 (-1) 90 (+1) 73 86 RH % (24h trend) 90 (-1) 57 (-9) 97 75 Wind 20ft/early(mph) SE 11 G19 SE 7 G17 Lgt/Var Lgt/Var Wind 20ft/late(mph) SE 6 S 9 G18 Lgt/Var Lgt/Var Max/Min Mix Hgt(m) 1520 900 Max/Min Mix Hgt(ft) 4980 2960 Transport Wnd (kts) S 14 S 7 Transport Wnd (m/s) S 7 S 4 Vent Rate (m/s-m) 10640 3600 Category Day 4 2 Sunshine Hours 5 3 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ212-213-227-237-238-190915- Fort Bend-Inland Brazoria-Inland Galveston-Inland Harris-Waller- Including the cities of Alvin, Angleton, Brookshire, First Colony, Friendswood, Hempstead, Houston, League City, Mission Bend, Missouri City, Pearland, Pecan Grove, Prairie View, Rosenberg, Sugar Land, and Waller 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Mcldy Mcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 20 50 70 Chance of Thunder (%) 0 20 50 50 Temp (24h trend) 77 (-1) 90 (+1) 75 87 RH % (24h trend) 91 (0) 59 (-7) 94 69 Wind 20ft/early(mph) SE 13 G20 SE 10 G18 SE 7 Lgt/Var Wind 20ft/late(mph) SE 9 G17 SE 13 Lgt/Var SE 6 Max/Min Mix Hgt(m) 1440 1050 Max/Min Mix Hgt(ft) 4730 3450 Transport Wnd (kts) S 15 SE 9 Transport Wnd (m/s) S 8 SE 5 Vent Rate (m/s-m) 11520 5250 Category Day 4 3 Sunshine Hours 4 3 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ210-211-226-235-236-190915- Austin-Colorado-Inland Jackson-Inland Matagorda-Wharton- Including the cities of Bay City, Bellville, Columbus, Eagle Lake, Edna, El Campo, Ganado, Sealy, Weimar, and Wharton 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Mcldy Pcldy Mcldy Mcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 20 60 60 Chance of Thunder (%) 0 20 50 50 Temp (24h trend) 76 (-2) 90 (0) 73 87 RH % (24h trend) 91 (-3) 57 (-7) 94 67 Wind 20ft/early(mph) SE 14 G22 SE 11 G20 SE 8 G19 SE 5 Wind 20ft/late(mph) SE 10 G19 SE 14 SE 5 SE 7 Max/Min Mix Hgt(m) 1390 1230 Max/Min Mix Hgt(ft) 4570 4040 Transport Wnd (kts) S 15 SE 10 Transport Wnd (m/s) S 8 SE 5 Vent Rate (m/s-m) 11120 6150 Category Day 4 3 Sunshine Hours 5 4 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ214-300-313-338-190915- Chambers-Coastal Galveston-Coastal Harris-Southern Liberty- Including the cities of Anahuac, Baytown, Devers, Dickinson, La Marque, Mont Belvieu, Old River-Winfree, Pasadena, Stowell, Texas City, and Winnie 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Mcldy Pcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 20 50 60 Chance of Thunder (%) 0 20 50 50 Temp (24h trend) 78 (0) 88 (+1) 75 87 RH % (24h trend) 92 (-1) 68 (-6) 95 72 Wind 20ft/early(mph) SE 13 SE 11 SE 7 SE 5 Wind 20ft/late(mph) SE 10 SE 13 SE 5 SE 8 Max/Min Mix Hgt(m) 1310 980 Max/Min Mix Hgt(ft) 4280 3210 Transport Wnd (kts) S 16 S 10 Transport Wnd (m/s) S 8 S 5 Vent Rate (m/s-m) 10480 4900 Category Day 4 3 Sunshine Hours 4 4 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ335>337-190915- Coastal Brazoria-Coastal Jackson-Coastal Matagorda- Including the cities of Clute, Freeport, Lake Jackson, and Palacios 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Mcldy Pcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 20 50 30 Chance of Thunder (%) 0 20 50 30 Temp (24h trend) 78 (-1) 88 (+1) 77 87 RH % (24h trend) 91 (-7) 70 (-6) 92 71 Wind 20ft/early(mph) SE 15 SE 12 SE 10 G19 SE 8 Wind 20ft/late(mph) SE 13 SE 14 SE 7 SE 10 Max/Min Mix Hgt(m) 1040 1060 Max/Min Mix Hgt(ft) 3420 3490 Transport Wnd (kts) S 16 SE 10 Transport Wnd (m/s) S 8 SE 5 Vent Rate (m/s-m) 8320 5300 Category Day 4 3 Sunshine Hours 4 4 Remarks... Fog Potential (First 24 Hours)...Low $$ TXZ436>439-190915- Bolivar Peninsula-Brazoria Islands-Galveston Island- Matagorda Islands- Including the cities of Galveston and Surfside Beach 325 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Pcldy Mcldy Pcldy Precip Type None Tstms Tstms Tstms Chance Precip (%) 0 20 50 30 Chance of Thunder (%) 0 20 50 30 Temp (24h trend) 79 (+1) 86 (+2) 78 86 RH % (24h trend) 95 (-1) 76 (-6) 94 76 Wind 20ft/early(mph) SE 18 SE 14 SE 13 SE 10 Wind 20ft/late(mph) SE 17 SE 14 SE 10 SE 10 Max/Min Mix Hgt(m) 850 760 Max/Min Mix Hgt(ft) 2800 2480 Transport Wnd (kts) SE 16 SE 10 Transport Wnd (m/s) SE 8 SE 5 Vent Rate (m/s-m) 6800 3800 Category Day 3 2 Sunshine Hours 4 5 Remarks... Fog Potential (First 24 Hours)...Low $$ .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 70s. Highs in the lower 80s. East winds around 5 mph. .FRIDAY...Showers and a chance of thunderstorms. Lows in the mid 70s. Highs in the lower 80s. South winds around 5 mph. .SATURDAY...Showers and a chance of thunderstorms. Lows in the mid 70s. Highs in the lower 80s. Southeast winds around 5 mph. .SUNDAY...Showers and a chance of thunderstorms. Lows in the mid 70s. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 70s. Highs in the lower 80s. Southeast winds around 5 mph. $$