FNUS72 KJAX 080448 FWSJAX Spot Forecast for Mailbox...USFS National Weather Service Jacksonville FL 1248 AM EDT Wed Jul 8 2026 Forecast is based on forecast start time of 0700 EDT on July 08. 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. ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS EVENING... .DISCUSSION... West/southwest winds will continue through the week, with good to high dispersion expected. Drier than normal conditions will limit thunderstorm potential through Friday, but minRH will stay above critical values. Mostly sunny skies will allow for dangerous afternoon heat indices, prompting a Heat Advisory today and possibly again on Thursday for the area. .REST OF TODAY... TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........28 25 23 26 30 33 36 42 41 41 40 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 10 10 10 10 10 10 10 10 Chc of thdr (%).0 0 0 0 10 10 10 10 10 10 10 Temp............75 77 81 87 90 92 95 96 97 98 97 RH..............97 97 88 70 64 58 51 46 45 43 45 Heat index (F)..75 77 88 98 102 103 106 105 106 107 106 Wind chill (F)..75 77 88 98 102 103 106 105 106 107 106 20 FT wind dir..W W W W W W W W W W SW 20 FT wind spd..2 3 5 6 6 6 7 8 8 7 7 20 FT wind gust.8 7 9 10 13 13 14 15 16 16 16 Mix hgt (kft)...0.7 0.8 1.8 2.8 3.9 4.5 5.1 5.7 5.8 5.9 6.0 Transp wind dir.W W W W W W W W W W W Transp wind spd.8 9 10 10 12 12 10 10 10 10 10 Dispersion idx..4 9 23 38 53 60 63 67 68 68 69 LVORI...........8 6 4 3 1 1 1 1 1 1 1 .TONIGHT... TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........38 35 31 30 28 26 25 23 22 20 16 17 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 10 10 10 10 0 0 0 0 0 0 0 Chc of thdr (%).10 10 10 10 10 0 0 0 0 0 0 0 Temp............96 94 90 86 84 82 81 79 78 77 77 76 RH..............45 49 58 65 70 74 77 82 85 90 90 94 Heat index (F)..104 102 98 93 90 87 86 79 78 77 77 76 Wind chill (F)..104 102 98 93 90 87 86 79 78 77 77 76 20 FT wind dir..W W SW SW SW SW SW SW W SW SW SW 20 FT wind spd..7 6 6 6 5 5 5 3 6 2 2 2 20 FT wind gust.16 16 14 12 13 13 12 10 9 9 9 9 Mix hgt (kft)...4.4 2.8 1.2 1.0 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.4 Transp wind dir.W W W W W W W W W W W W Transp wind spd.10 10 9 10 10 12 10 10 9 9 8 8 Dispersion idx..53 34 5 5 5 5 5 5 4 4 4 4 LVORI...........1 1 3 3 3 3 4 4 5 6 6 6 .THURSDAY... TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........20 12 25 28 27 28 24 18 12 11 11 12 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 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............76 75 77 81 87 90 91 95 96 97 98 97 RH..............94 97 97 88 70 62 60 51 48 45 43 45 Heat index (F)..76 75 77 88 98 101 102 106 106 106 107 106 Wind chill (F)..76 75 77 88 98 101 102 106 106 106 107 106 20 FT wind dir..SW SW SW W W SW SW SW SW SW SW SW 20 FT wind spd..1 1 2 3 5 5 6 6 6 6 7 7 20 FT wind gust.8 8 8 9 9 12 13 14 14 15 15 15 Mix hgt (kft)...0.6 0.7 0.9 2.0 3.0 4.1 4.8 5.6 6.3 6.5 6.7 6.9 Transp wind dir.W W W W W W W W W W W W Transp wind spd.8 8 8 9 9 10 10 10 10 10 10 10 Dispersion idx..4 4 9 22 36 53 61 68 75 77 78 80 LVORI...........6 8 6 4 3 1 1 1 1 1 1 1 $$ Forecaster...Klingler Requested by...Michels Type of request...WILDFIRE .TAG 2616912.1/JAX .DELDT 07/08/26 .FormatterVersion 2.0.0 .EMAIL nick.michels@usda.gov