State forecast for S.D.

Freeze warning tonight west...

Frost advisory tonight southeast...

Today...Occasional showers far southeast in the morning...Possibly mixed with snow or sleet. Scattered rain or snow showers southwest and south central this morning. A slight chance of light rain or light snow showers north. Breezy east this morning. Highs in the 40s.

Tonight...Becoming partly cloudy by late evening. Widespread frost southeast after midnight. Lows mainly in the upper 20s...With some lower 30s far southeast.

Friday...Partly cloudy and warmer. A slight chance of afternoon rain showers west. Highs from the mid 50s northeast...To the mid 60s southwest.

Saturday...Partly to mostly cloudy. A chance of showers and thunderstorms east. Lows 35 to 45. Highs in the 60s.

Sunday...Partly cloudy during the day...Becoming mostly cloudy with a chance of showers and thunderstorms sunday night. Lows in the 40s. Highs in the mid 60s to lower 70s.

Monday...Mostly cloudy with a chance of showers and thunderstorms during the day...Then becoming partly cloudy monday night. Lows in the mid 40s to lower 50s. Highs mainly in the 60s...With some lower 70s far southeast.