Spot Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
600 FNUS72 KJAX 270752 FWSJAX Spot Forecast for Donna Marathon Weekend 26MI...City of Jacksonville Emergency Preparedness National Weather Service Jacksonville FL 252 AM EST Tue Jan 27 2026 Forecast is based on forecast start time of 0500 EST on February 01. If conditions become unrepresentative, contact the National Weather Service. Please contact our office at (904) 741-4370 if you have questions or concerns with this forecast. .DISCUSSION...A reinforcing surge of frigid arctic air is expected behind the coastal trough on Sunday, with low temperatures on Saturday night into Sunday morning falling into teens and lower 20s. These temperatures, combined with windy conditions, could result in dangerous wind chills in the single digits and teens in the morning with Cold Weather Advisory and Freeze Warning most likely in place. By noon, temperature are forecast to warm to around 32 to 35 degrees with wind chills still between 20 and 25 degrees. Afternoon temperatures will tick up into the lower to mid 40s, with wind chills still in the 30 to 35 degree range. There may be a lingering shower (10%) around sunrise, otherwise at this time is forecast to be dry most of the day as the system pulls northeast toward the Carolinas. .6 AM SUNDAY... TIME (EST) 5AM Sky (%).........21 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 Chc of thdr (%).0 Temp............28 RH..............68 Heat index (F)..12 Wind chill (F)..12 Surface wnd dir.NW Surface wnd spd.29 Surface wnd gst.32 Transp wind dir.NW Transp wind spd.29 .SUNDAY... TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........19 16 13 9 6 5 3 2 2 2 2 4 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............28 28 28 30 31 32 34 35 36 38 39 39 RH..............66 66 66 60 58 56 54 52 50 46 44 46 Heat index (F)..12 13 13 16 18 19 22 24 26 28 30 30 Wind chill (F)..12 13 13 16 18 19 22 24 26 28 30 30 Surface wnd dir.NW NW NW NW NW NW NW NW NW NW NW NW Surface wnd spd.29 28 26 24 23 22 21 20 18 18 18 18 Surface wnd gst.31 30 29 26 25 24 23 22 22 22 22 21 Transp wind dir.NW NW NW NW NW NW NW NW NW NW NW NW Transp wind spd.29 28 26 24 23 22 21 20 20 20 18 18 $$ Forecaster...Cordero Requested by...Allison Herbert Type of request...OTHER .TAG 2528699.0/JAX .DELDT 01/27/26 .FormatterVersion 2.0.0 .EMAIL aaherbert@coj.net