FNUS76 KMFR 220313 FWSMFR Spot Forecast for Castle...USFS National Weather Service MEDFORD OR 813 PM PDT Fri Aug 21 2026 Forecast is based on forecast start time of 0500 PDT on August 22. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... A strong inversion will be in place overnight with very limited mixing through the morning hours. Mixing is anticipated to start around 9am with deep mixing through the afternoon hours. Thanks to very good overnight recoveries, RH values may only get down to slightly below 30% Saturday afternoon. Wind speeds will be stronger on Saturday from the west through the afternoon hours, but by late afternoon/early evening there will be a slight northwest component before speeds calm down after sunset. .REST OF TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Chance of lightning.0 percent. Min temperature.....Around 55. Max humidity........86 percent. Eye level winds.....Light winds. Wind (20 ft)........Light winds. Mixing height.......400 ft AGL. Transport winds.....South around 3 mph. CWR.................0 percent. TIME (PDT) 5 AM Sky cover.......MCLEAR Weather cov..... Weather type....NONE Tstm cov........0 CWR.............0 Chc of ltng (%).0 Temp............57 RH..............86 20 FT wind......S 1G4 Eye level wind..S 0G2 Mix hgt (ft)....400 Transport wind..S 3 .SATURDAY... Sky/weather.........Sunny (5-10 percent). Chance of lightning.0 percent. Max temperature.....Around 87. Min humidity........27 percent. Eye level winds.....Light winds becoming west 2 to 5 mph late in the morning/afternoon with gusts around 10 mph. Wind (20 ft)........Light winds becoming west 5 to 10 mph late in the morning/afternoon with gusts around 15 mph. Mixing height.......6100 ft AGL. Transport winds.....Southwest 3 to 10 mph shifting to the west 10 to 14 mph late in the afternoon. CWR.................0 percent. TIME (PDT) 6 AM 9 AM NOON 3 PM Sky cover.......PCLDY MCLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Chc of ltng (%).0 0 0 0 Temp............56 64 80 85 RH..............86 69 37 27 20 FT wind......S 1G4 S 1G4 W 5G7 W 6G10 Eye level wind..S 0G2 S 0G2 W 2G3 W 2G4 Mix hgt (ft)....400 2500 5600 6100 Transport wind..S 3 SW 6 SW 10 W 14 .SATURDAY NIGHT... Sky/weather.........Mostly clear (10-20 percent). Chance of lightning.0 percent. Min temperature.....Around 52. Max humidity........86 percent. Eye level winds.....West winds around 2 mph early in the evening becoming light. Wind (20 ft)........West winds around 6 mph early in the evening becoming light. Mixing height.......200 ft AGL. Transport winds.....West 3 to 10 mph shifting to the east 2 to 3 mph overnight. CWR.................0 percent. TIME (PDT) 6 PM 9 PM MIDNGT 3 AM Sky cover.......CLEAR MCLEAR MCLEAR MCLEAR Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Chc of ltng (%).0 0 0 0 Temp............81 67 61 55 RH..............36 59 72 81 20 FT wind......W 6G10 NW 3G6 N 0G2 N 0G2 Eye level wind..W 2G4 NW 1G2 N 0G1 N 0G1 Mix hgt (ft)....5400 1100 200 200 Transport wind..W 10 W 8 NW 3 E 3 $$ Forecaster...GUERRERO Requested by...Jennifer Powers Type of request...WILDFIRE .TAG 2620060.1/MFR .DELDT 08/22/26 .FormatterVersion 2.0.0 .EMAIL jennifer.powers@usda.gov