What will the weather be like in September?We will be in your area around Sept. 10. What will the weather be like then? - Jim, Phoenix, Ariz.
No one ever knows — that's why the Upper Midwest is such a mecca for meteorologists.
Early September is the transition between summer and fall, and weather can be unsettled. We could have temperatures in the 90s or 50s, though 70s is more likely.
In 2009, August was cool and rainy, and September was warm and sunny.
It also depends on where you're going. It's been known to snow in the Boundary Waters Canoe Area Wilderness and Ely area in late September; in southern Iowa, it still could be sticky.
I would check Wunderground or some other forecasting service the week before you come for a better idea. You can also check Old Farmer's Almanac to see what the weather was for your destination in past years.
If you bring a fleece or a light jacket, you ought to be fine in most places. For the North Shore of Lake Superior or Boundary Waters, bring both.