Chicago Smart Thermostat Settings for Winter 2026-27

Copyable Chicago winter 2026-27 settings

For a Chicago home with a gas furnace or conventional forced-air heat, use this as the winter 2026-27 starting schedule. Verified August 25, 2026. The useful part is not a secret temperature; it is getting the setback into the thermostat so the house actually repeats it on Tuesday morning, during a January cold snap, and when everyone forgets.

If you want the shortest version: set 68°F for the normal occupied blocks, 60-66°F for sleep, about 62°F for ordinary away periods, and 55°F as the vacation or freeze-protection minimum. Then file the Peoples Gas thermostat rebate before December 31, 2026, if your installation qualifies.

If you are coming out of a shoulder-season setup, switch from the fall schedule to this winter schedule before the first hard freeze rather than waiting for the furnace to run all night. The September handoff is a different problem; this winter recipe is the one to leave in place once heating season is real.

Why these plain numbers beat clever winter tinkering

The 68°F home setting is not folklore. DOE’s consumer thermostat guidance says that in winter you can save energy by setting the thermostat to about 68°F while awake and setting it lower while asleep or away from home. The same DOE guidance says turning the thermostat back 7-10°F for 8 hours a day can save up to 10% a year on heating and cooling. [1]

Illinois’ own winter guidance points the same direction, with a rule that is easier to remember when you are standing in front of the thermostat: for temperatures in the 60-70°F range, each degree you lower the setting can save about 3%. It also lists 55°F for extended absences, with a 5-20% savings range. [2]

That does not mean every Chicago house should be forced to 58°F at night. Old plaster walls, leaky rim joists, bedrooms over porches, babies, older relatives, and pets all matter. The point is to pick the lowest sleep setting the household will tolerate and then stop touching it. A 64°F sleep schedule that survives the whole winter is better than a heroic 58°F experiment that gets canceled after two nights.

The 55°F number belongs in vacation and freeze-protection settings, not in your normal weekday schedule. In a Chicago winter, a thermostat that is too low can turn a minor savings attempt into a pipe-freeze problem. I would rather leave a few theoretical dollars on the table than explain to someone why the back bathroom wall froze because an Eco setting was trying to win an argument.

For a deeper look at how national thermostat savings claims translate into real bills, use the site’s smart-home winter energy savings evidence guide or the gas-spike thermostat savings recipe. This page is staying with what you actually set.

Program the same recipe in Nest

For Nest, think in four buckets: scheduled heating temperatures, Eco Temperatures, Safety Temperatures, and any vacation behavior you use when the house is empty for more than a normal workday.

1. Open the thermostat schedule and create the occupied blocks first: 68°F for wake-up, after-school, evening, or any block when people are normally home. Google’s Nest schedule documentation covers creating and editing thermostat temperature schedules. [4]
2. Add the sleep block next. Start at 64°F if the household is unsure, then move down toward 60°F only if nobody is waking up cold or overriding the thermostat at 2 a.m.
3. Set ordinary away behavior around 62°F. In Nest language, this usually means checking the heating Eco Temperature. Google lists the heating Eco Temperature range as 40-70°F, so 62°F is inside the supported range. [5]
4. Check Safety Temperatures separately. Keep the heating safety minimum at 55°F or higher so freeze protection does not depend on a normal schedule block. Google’s Safety Temperatures documentation describes heating safety temperatures used to help prevent the home from getting too cold. [6]
5. After the first cold week, look at whether Nest is dropping into Eco when someone is still home. If that keeps happening, fix presence detection or make the schedule less clever. Do not keep lowering the setpoint to compensate for a thermostat that is guessing wrong.

The one Nest setting I would not leave vague is the safety minimum. A normal away temperature can be about comfort and savings. A safety temperature is there for the house.

Program the same recipe in ecobee

On ecobee, translate the table into Comfort Settings and then assign those settings to the weekly schedule. The labels may be friendlier than the job they are doing: Home is 68°F, Sleep is 60-66°F, Away is about 62°F, and Vacation or minimum heat protection should not go below 55°F for a conventional gas-furnace setup.

If Smart Home/Away keeps fighting the schedule in a busy house, simplify it. A Chicago winter schedule should not require someone to debug occupancy logic before coffee. Keep the Comfort Settings stable, give the thermostat a normal week, and only then decide whether automation is helping or just adding surprise setbacks.

Remote sensors can make this better or worse. If the coldest bedroom is the real complaint, include that room during Sleep. If a chilly unused room keeps dragging the whole house warmer all night, do not let that sensor vote during Sleep. That is not a savings trick; it is just putting the thermostat in charge of the rooms people actually occupy.

Program the same recipe in Honeywell

Honeywell thermostats vary more by model, so use the period names rather than chasing one perfect menu path. On a basic programmable Honeywell, the usual winter pattern is Wake, Leave, Return, and Sleep. On a connected Honeywell Home model, the same idea may show up as a schedule in the app.

• Wake: 68°F.
• Leave: about 62°F, unless the house is occupied during the day.
• Return: 68°F.
• Sleep: 60-66°F.
• Vacation, hold, or extended away: 55°F minimum.

Honeywell’s own winter settings guidance points to 68°F when home and awake, lower settings when asleep or away, and a 55°F minimum when away for an extended period. [3]

The most common Honeywell mistake is leaving an old hold in place. Before the first serious cold stretch, cancel temporary holds, check that Heat mode is active, and make sure the schedule repeats on weekdays and weekends the way the household actually lives.

Stop here if the house uses a heat pump

If your outdoor unit provides heat in winter and the system has electric backup or auxiliary heat, do not copy the gas-furnace setback schedule blindly. Illinois guidance says heat-pump setbacks should be limited to about 2°F because larger setbacks can bring on backup strip heat, which can erase the savings you were trying to get. [2]

The practical test is simple: if a big morning recovery makes AUX heat appear, the setback is probably too aggressive for that system. Put the thermostat back to a smaller setback and solve comfort some other way. Heat pumps can be efficient in winter, but they do not reward the same overnight drop a gas furnace usually tolerates.

File the Peoples Gas thermostat rebate before December 31, 2026

Peoples Gas lists a 2026 residential rebate of $25 for a smart thermostat and $20 for a programmable thermostat. The installation window is January 1 through December 31, 2026, and the rebate request is due by December 31, 2026. [8]

1. Check the Peoples Gas Home Energy Rebates page before buying or filing, because eligibility rules matter. [8]
2. Save the receipt, model information, and installation date.
3. Install the thermostat within the January 1-December 31, 2026 program window. [8]
4. Submit through the Peoples Gas rebate path or the Franklin Energy application link used for the program. [8][9]
5. Do it before December 31, 2026. This is the request deadline, not just a purchase-date reminder. [8]

I am not counting unverified bill snippets or gated demand-response credit claims in this recipe. The confirmed, copyable money task here is the thermostat rebate with the 2026 deadline.

Seasonal forecasts can change how nervous everyone feels, but they do not change this programming recipe; if you want the forecast framing, use the separate El Niño winter thermostat settings article instead of rebuilding your schedule around a long-range outlook.

Final pre-winter checklist

• Gas furnace or conventional heat: 68°F home, 60-66°F sleep, about 62°F away, 55°F vacation floor.
• Nest: schedule saved, Eco heat checked around the away setting, Safety Temperature kept at 55°F or higher.
• ecobee: Home, Sleep, Away, and Vacation settings match the table; remote sensors are assigned to the rooms that matter.
• Honeywell: old holds cleared; Wake, Leave, Return, and Sleep periods checked.
• Heat pump: large setbacks avoided unless the system is specifically configured for them.
• Peoples Gas rebate: receipt saved and request filed by December 31, 2026.

References

1. Energy Saver Tips: Adjust Your Thermostat — U.S. Department of Energy
2. No Cost Ways to Save — Keep Warm Illinois
3. Best Fall & Winter Thermostat Settings for Savings — Honeywell Home
4. Create a temperature schedule for your thermostat — Google Nest Help
5. Learn about Eco Temperatures and how to change settings — Google Nest Help
6. Learn about Safety Temperatures and how to change settings — Google Nest Help
7. Ecobee settings for heat pumps with resistive aux heat — aphyr.com
8. Home Energy Rebates — Peoples Gas
9. Franklin Energy application