Weather in Fort Sill, OK
Updated 2026-09-26 11:00 local time · ZIP codes 73503
Moderate rain at times
No government weather alerts were returned for this location at the latest update.
Next hours
76°40% rain
81°1% rain
85°20% rain87°1% rain89°1% rain90°1% rain91°2% rain
90°2% rain84°8% rain
77°19% rain
77°65% rain
75°7% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 65% over the next 12 hours.
It feels like 70°F with winds near 13 mph.
81°F, 1% rain chance and 14 mph wind.
Visibility is around 6 mi; gusts may reach 33 mph.
Current temperature is 76°F, wind 13 mph, rain chance up to 65%.
UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Fort Sill
Oklahoma often experiences strong weather contrasts, with hot summers, windy conditions and a major spring severe-thunderstorm and tornado season.
Fort Sill is part of the South weather region. The forecast point is near 34.65°N latitude and 98.41°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Fort Sill weather today
Moderate rain at times and 76°F in Fort Sill, OK. Today's high is 91°F with a 62% rain chance. Winds are around 13 mph with gusts near 20 mph. Relative humidity is 50%, pressure is 29.99 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Fort Sill
Sunrise is at 07:24 AM and sunset is at 07:25 PM. Tomorrow's forecast calls for Sunny with a high near 90°F and a low near 71°F. The maximum rain chance is 57%.