FPUS62 KKEY 200802 SFTKEY STZ000-202100- Tabular State Forecast for the Florida Keys National Weather Service Key West FL 401 AM EDT 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 ...Upper Keys... Key Largo Ptcldy Sunny Sunny Sunny Sunny Sunny Sunny /74 65/76 67/76 68/78 68/78 69/78 71/78 /20 10/00 00/00 00/00 00/00 10/10 10/10 ...Middle Keys... Marathon Sunny Sunny Sunny Sunny Sunny Sunny Sunny /76 66/77 67/78 69/78 69/79 69/79 70/79 /20 20/00 00/00 00/00 00/00 00/10 10/10 ...Lower Keys... Key West Sunny Sunny Sunny Sunny Sunny Sunny Sunny /78 67/77 67/79 70/80 70/80 71/81 71/82 /10 10/00 00/00 00/00 00/00 00/00 10/10 $$