Iowa DNR: Cooler Weather to Change the Game for Deer Hunters
If you’ve been out bow hunting in Iowa this fall, you’ve probably noticed a few things. Some hunters always find success, others are passing on deer that don’t quite meet standards, and plenty are still waiting for the right opportunity. One complaint keeps coming up as I chat with hunters: It’s been awfully warm for the deer hunting.
The good news, for hunters anyway? That stretch of summerlike weather most have been enjoying will be ending soon. After a September that brought near-record rainfall, a recent run of dry weather has helped Iowa farmers make progress with the fall harvest. Cooler temperatures are also in the forecast, with overnight lows expected to dip into the 30s and even a possible frost.
There's a reason hunters pay attention to those temperature changes. Cooler weather can make daytime activity more comfortable for deer than it is during an unusually warm fall. But temperature is only part of the equation. Food availability, hunting pressure, wind, and changing habitat all play a role in where deer move and when hunters are likely to see them.
This year's wet growing season has also helped keep natural food sources plentiful in many areas. According to the Iowa Department of Natural Resources, deer have been finding plenty of food and cover in timbers, so they haven't needed to move as much into agricultural fields. As the harvest progresses and standing crops disappear, any cover they have will be limited for travel between wooded areas. This will lead deer to start using different travel routes as their food sources and cover shift.
I've heard from a few hunters who have passed on shots because the deer weren't quite big enough for what they wanted. Others have already had some success and still have tags to fill. That's part of the appeal of deer hunting. Some are looking to put meat in the freezer, others are holding out for a particular buck, and plenty are just happy to spend time outdoors and see what the day brings.
The DNR's long-term monitoring offers some perspective, too. Iowa's 2026 spring deer survey recorded the lowest statewide deer counts in a decade. That lines up with what many experienced bow hunters have been reporting: they're fewer deer across the state. To be certain, deer numbers aren't the same everywhere. Western Iowa is showing encouraging signs of improvement after a couple of years with less impact from hemorrhagic disease. Changes to hunting regulations, including the removal of additional doe tags, may also be helping the population recover in that region.
Iowa averages more than 50,000 bow hunters each year, and hunters reported harvesting more than 20,000 deer with archery equipment in 2025. That's a lot of time spent in the timber, even when sightings aren't what hunters would like.
As for me, I might be a little crazy, or maybe my hunting group is. Every year, we head into Iowa's second shotgun season knowing it can be about as cold as it gets for hunting. After complaining about the heat in October, we'll probably find ourselves bundled up and wondering why we ever wished for colder weather.
For now, bow hunters still have plenty of season left. Iowa's archery season runs through December 4th, pauses for the two regular gun seasons, then reopens December 21st through January 10th, 2027. The early muzzleloader season begins this weekend, running October 17th-25th.
No matter your reason for hunting, the changing weather could bring a welcome shift for your fortunes. Or not it could be a tough go with lower deer numbers. Sure, cooler temps don't guarantee more deer sightings, but with crops coming out, food sources changing, and winter approaching, the next few weeks could look a lot different from the warm start we've had.
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Gallery Credit: Meagan Drillinger