FPUS62 KKEY 220800 SFTKEY STZ000-222100- Tabular State Forecast for the Florida Keys National Weather Service Key West FL 359 AM EDT Sun Mar 22 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 Mon Tue Wed Thu Fri Sat Mar 22 Mar 23 Mar 24 Mar 25 Mar 26 Mar 27 Mar 28 ...Upper Keys... Key Largo Sunny Sunny Sunny Sunny Sunny Sunny Ptcldy /76 67/77 66/77 69/78 70/79 72/79 72/79 /00 00/00 00/00 00/00 00/00 00/10 10/10 ...Middle Keys... Marathon Sunny Sunny Sunny Sunny Sunny Sunny Ptcldy /77 67/78 67/78 69/79 70/80 71/80 72/80 /00 00/00 00/00 00/00 00/00 00/00 10/10 ...Lower Keys... Key West Sunny Sunny Sunny Sunny Sunny Sunny Ptcldy /79 68/78 68/79 70/81 71/81 72/82 72/81 /00 00/00 00/00 00/00 00/00 00/00 10/10 $$