FPUS64 KBRO 201740 SFTBRO TXZ248>255-351-353>355-451-454-455-202200- Tabular State Forecast for Deep South Texas National Weather Service Brownsville TX 1240 PM CDT Mon Apr 20 2026 ROWS INCLUDE... Daily predominant daytime weather 6AM-6PM Forecast temperatures...early morning low/daytime high Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM - indicates temperatures below zero MM indicates missing data FCST FCST FCST FCST FCST FCST FCST Today Tue Wed Thu Fri Sat Sun Apr 20 Apr 21 Apr 22 Apr 23 Apr 24 Apr 25 Apr 26 ...Lower Texas Coast... Port Mansfield Shwrs Mocldy Ptcldy Ptcldy Ptcldy Mocldy Mocldy /70 69/76 72/80 72/80 73/82 74/82 74/83 /70 40/40 10/20 00/00 00/00 00/00 00/00 Port Isabel Shwrs Mocldy Ptcldy Ptcldy Ptcldy Mocldy Mocldy /71 70/77 73/81 73/81 75/83 75/82 75/83 /50 40/30 30/10 00/00 00/00 00/00 00/00 South Padre Island Shwrs Mocldy Sunny Ptcldy Ptcldy Mocldy Mocldy /71 71/76 74/79 74/79 76/80 76/80 76/81 /50 40/30 30/10 00/00 00/00 00/00 00/00 ...Rio Grande Valley... Brownsville Mocldy Mocldy Ptcldy Ptcldy Mocldy Mocldy Mocldy /73 70/80 71/85 71/87 74/88 74/89 74/90 /40 40/30 20/10 00/00 00/00 00/00 00/00 Harlingen Mocldy Mocldy Ptcldy Ptcldy Mocldy Mocldy Mocldy /71 67/81 68/87 68/88 71/90 72/92 72/92 /40 40/30 10/10 00/00 00/00 00/00 00/00 Raymondville Shwrs Mocldy Ptcldy Ptcldy Mocldy Mocldy Mocldy /69 66/80 68/86 68/88 71/91 72/92 72/93 /50 40/40 10/10 00/00 00/00 00/00 00/00 Weslaco Mocldy Mocldy Ptcldy Ptcldy Mocldy Mocldy Mocldy /72 67/82 70/87 70/88 73/91 74/92 74/94 /30 40/40 10/10 00/00 00/00 00/00 00/00 McAllen Mocldy Mocldy Ptcldy Ptcldy Mocldy Mocldy Mocldy /71 67/82 72/90 72/91 75/94 76/95 76/97 /20 30/30 10/10 00/00 00/00 10/00 00/00 ...Other Deep South Texas Cities... Rio Grande City Mocldy Mocldy Ptcldy Ptcldy Mocldy Ptcldy Mocldy /70 63/83 70/90 70/93 73/95 74/97 74/98 /20 40/20 10/10 00/00 00/00 10/00 00/00 Falfurrias Shwrs Shwrs Ptcldy Mocldy Mocldy Mocldy Mocldy /68 65/80 68/87 68/89 72/92 72/94 72/95 /70 50/50 20/20 00/00 00/10 10/10 00/10 Hebbronville Shwrs Mocldy Mocldy Mocldy Mocldy Mocldy Mocldy /66 63/79 68/85 67/89 71/92 72/94 72/94 /60 50/30 30/10 00/00 00/10 10/10 00/10 Zapata Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Mocldy /68 62/82 70/90 69/93 72/95 73/97 74/98 /20 40/20 20/00 00/00 00/00 10/00 00/00 $$