Expires:202601081700;;980275 FPUS54 KTSA 080534 ZFPTSA Zone Forecasts for Eastern Oklahoma and Northwest Arkansas National Weather Service Tulsa OK 1133 PM CST Wed Jan 7 2026 ARZ029-081700- Sebastian- Including the city of Fort Smith 1133 PM CST Wed Jan 7 2026 .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Not as cool with lows in the lower 50s. Temperature rising into the upper 50s after midnight. East winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 20 percent. .THURSDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph after midnight. .FRIDAY...Mostly sunny. Cooler with highs in the lower 60s. Northwest winds around 5 mph, becoming northeast around 5 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 40. Northwest winds 10 to 15 mph. Gusts up to 30 mph after midnight. .SATURDAY...Partly sunny in the morning, then clearing. Cooler with highs in the lower 50s. .SATURDAY NIGHT...Mostly clear. Colder with lows around 30. .SUNDAY...Sunny. Highs in the mid 40s. .SUNDAY NIGHT...Clear, cold with lows in the mid 20s. .MONDAY...Sunny. Not as cool with highs in the mid 50s. .MONDAY NIGHT...Mostly clear. Cold with lows in the lower 30s. .TUESDAY...Sunny. Highs in the lower 60s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Mostly sunny. Highs in the mid 50s. $$