Lows are expected to reach near the freezing mark tonight, meaning a chance for our first frost in the area. It’ll be an early frost, as Marion County doesn’t typically expect a frost until the early part of October. The Iowa State Extension Office says to pull any crops you may want, even unripe tomatoes. Tomatoes will ripen if you dry them and lay them out in a single layerIf you want to keep your growing season rolling, you can also irrigate the soil before the frost, which conducts heat in the soil, and cover your plants as well. Be sure to remove any covers before the sun rises on Sunday.