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 Fri Mar 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 Sat Sun Mon Tue Wed Thu Mar 20 Mar 21 Mar 22 Mar 23 Mar 24 Mar 25 Mar 26 ...Lower Texas Coast... Port Mansfield Sunny Sunny Sunny Sunny Sunny Sunny Sunny /77 64/80 65/79 66/78 66/78 66/79 66/79 /00 00/00 00/00 00/00 00/10 00/00 00/00 Port Isabel Sunny Sunny Sunny Sunny Sunny Sunny Sunny /78 67/79 67/79 68/79 68/79 68/80 68/80 /00 00/00 00/00 00/00 00/10 00/00 00/00 South Padre Island Sunny Sunny Sunny Sunny Sunny Sunny Sunny /75 68/76 68/76 69/76 69/76 70/77 69/77 /00 00/00 00/00 00/00 00/10 00/00 00/00 ...Rio Grande Valley... Brownsville Sunny Sunny Sunny Sunny Sunny Sunny Sunny /85 64/86 65/85 65/86 65/86 67/87 66/87 /00 00/00 00/00 00/00 00/10 00/00 00/00 Harlingen Sunny Sunny Sunny Sunny Sunny Sunny Sunny /89 60/91 61/90 61/89 62/89 63/91 63/92 /00 00/00 00/00 00/00 00/10 00/00 00/00 Raymondville Sunny Sunny Sunny Sunny Sunny Sunny Sunny /89 60/91 61/89 61/88 62/89 63/91 63/91 /00 00/00 00/00 00/00 00/10 00/00 00/00 Weslaco Sunny Sunny Sunny Sunny Sunny Sunny Sunny /89 63/91 63/89 63/91 65/91 66/91 65/91 /00 00/00 00/00 00/00 00/10 00/00 00/00 McAllen Sunny Sunny Sunny Sunny Sunny Sunny Sunny /92 65/95 66/93 65/93 66/93 67/95 68/95 /00 00/00 00/00 00/00 00/10 00/00 00/00 ...Other Deep South Texas Cities... Rio Grande City Sunny Sunny Sunny Sunny Sunny Sunny Sunny /92 60/95 61/94 62/93 62/93 64/95 64/95 /00 00/00 00/00 00/00 00/10 00/00 00/00 Falfurrias Sunny Sunny Sunny Sunny Ptcldy Ptcldy Sunny /92 59/95 60/94 60/91 62/92 63/94 63/95 /00 00/00 00/00 00/00 00/00 00/00 00/00 Hebbronville Sunny Sunny Sunny Sunny Ptcldy Sunny Sunny /91 58/94 60/92 60/91 62/91 62/94 63/94 /00 00/00 00/00 00/00 00/00 00/00 00/00 Zapata Sunny Sunny Sunny Sunny Sunny Sunny Sunny /91 60/95 61/94 62/93 62/92 63/95 63/95 /00 00/00 00/00 00/00 00/00 00/00 00/00 $$