Brrr! What a cold day across the state on Wednesday and tonight will be well below average. Is fall finished? No. A chinook will start strengthening overnight through Thursday with warmer temperatures moving in making for 2-3 really nice autumn days ahead. Thursday will start out cold but under sunny skies temperatures will warm into the 40s for most areas. Northeast Montana will hold in the 30s for highs but it will be much warmer than Wednesday. Mild Pacific air will move across the entire state on Friday with highs warming into the 50s and 60s. A chinook arch cloud formation will develop over the Rocky Mountain Front. Southwest wind will be strong across the prairies through Thursday and Friday. The weekend starts out sunny and mild on Saturday with highs again in the 50s to around 60. But a sharp cold front will move through Saturday night with huge changes for Sunday. Highs will only be in the 10s and 20s on Sunday with widespread light snow. Accumulation right now looks light, on the order of 1-3" in the lower elevations and up to 6" in the mountains. Yet another warmup will move into the state toward the middle of next week. This pattern of cold and snow followed by sunshine and warmer temperatures will continue through the next few weeks.
Have a great day.