Protect exposed systems from cold nights, then use the expected dry spell for Chicago outdoor work. Check West Coast travel separately.
Tempra Labs
Tempra Signal
The weekly newsletter from Tempra Labs
Weather and climate intelligence for business decisions  ·  Chicago first, then the world
Issue 03  ·  Friday, November 6, 2026
 

Prepare for cold nights and finish outdoor work while the weather is dry.

Protect exposed systems from cold nights, then use the expected dry spell for Chicago outdoor work. Check West Coast travel separately.

 
THIS WEEK
Cold nights could damage exposed pipes, plants and equipment in parts of the Chicago region.
The dry weather that follows could give businesses and community organizations time to complete outdoor repairs and clear leaves before winter.
If your business has travel or deliveries planned through the West Coast, check the storm outlook for that route as well.
A worker rakes autumn leaves toward a vacuum collection truck on a residential street in Lisle, Illinois
A leaf-collection worker in Lisle, Illinois. Source: Village of Lisle.

How to prepare this week

Protect outdoor pipes and equipment before temperatures fall. Check the overnight forecast for your location from tonight through Sunday night. Protect exposed water lines and equipment if temperatures could fall below freezing.

Use the dry days to complete outdoor maintenance. NWS Chicago forecasts dry weather from Saturday through Tuesday. Consider scheduling repairs and leaf cleanup during this period, after checking conditions at your site.

Check the forecast before work begins. Before starting work, check the hourly forecast and the temperature requirements for any concrete, paint or sealant you plan to use.

Preparing your property

Check what needs protection before the cold nights arrive. The National Weather Service expects cold nights in parts of the Chicago region, followed by milder days. Outdoor work may be easier during the dry weather, but some materials also need temperatures to remain above a specified level overnight.

Start with exposed water lines, irrigation, equipment and materials left outdoors. Then prioritize roof, gutter and drain work, exterior repairs and grounds maintenance.

Check the forecast for your own location. NWS forecasts a low of 34°F at O'Hare tonight. Other parts of the region may fall below freezing, so conditions at the airport may differ from those at your property. Cold nights may continue through Sunday night.

The local forecast

Temperatures should rise during the day, but nights will remain cooler. The O'Hare forecast shows no rain from Saturday through Tuesday, little chance on Wednesday, Veterans Day, and a slight chance of rain on Thursday. Check the latest forecast before arranging outdoor work because the forecast can change.

Graphic: four status tiles, Freeze WATCH, Rain CALM, Snow CALM, Warmth CALM, above a seven-day panel for O'Hare, Friday Nov 6 to Thursday Nov 12: highs 48, 51, 59, 62, 61, 58 and 55 degrees; lows 34, 38, 38, 44, 40, 42 and 39; chance of rain 7 percent Friday, 0 Saturday to Tuesday, 6 percent Wednesday and 18 percent Thursday; a dashed line marks 32 degrees, the freezing point
The week ahead at O'Hare, Nov 6 to 12. Source: NWS Chicago.

A quick site walk

Check these four areas before the cold nights.

Area What to check
Water lines Check exposed faucets, hoses and irrigation. Drain or isolate them according to site procedures.
Concrete, paint and sealants Check product limits and overnight curing requirements before starting.
Plants and grounds Protect sensitive plants and check irrigation equipment.
Equipment and loading areas Check water-filled equipment and goods that could be damaged by freezing.

For concrete, coatings and sealants, follow the product's temperature and curing requirements. A dry afternoon alone does not make the job suitable.

What it means for your organization

Choose outdoor jobs that can be completed during the dry weather.

Your organization What to do Before changing the plan
Property and facilities Arrange roof, gutter and drain maintenance while conditions are dry. Confirm dry conditions, safe access and contractor availability.
Construction and landscaping Schedule concrete, paving, painting and planting only when temperatures and ground conditions meet the job's requirements. Check overnight lows, ground conditions and material requirements.
Schools, hospitals and public works Protect exposed pipes and equipment, and arrange leaf pickup and outdoor maintenance. Confirm staffing and keep essential services covered.
Events and hospitality Plan for cold evenings even if daytime temperatures are comfortable for outdoor events. Check the hourly forecast; keep shelter and heating options ready.
Energy and building operations Review building heating schedules as temperatures change through the week. Maintain required indoor temperatures and protect exposed systems.

Before rescheduling a job, agree on the weather conditions it requires, who will approve the work and when that decision must be made.

Chicago communities

Clear leaves from drains to help reduce flooding during rain and snowmelt.

Leaves and litter, including a plastic bottle and a paper cup, partly block a street storm inlet beside a curb
Leaves and litter block a storm inlet. Source: Village of Bloomingdale.

Leaves that collect over a street drain can stop water from entering it. Rainwater or melting snow can then collect on streets and near entrances. Clearing the drain opening can help reduce this local flooding risk. The City of Chicago coordinates bagged leaf collection to help residents clear yards, parkways and storm drains of leaf debris, and catch basins full of debris can be reported for cleaning. This matters in winter too: MWRD advises keeping storm drains clear during snowmelt, because frozen ground cannot absorb the water.

What property managers and community organizations can do. Ask maintenance staff to check accessible drain openings, entrances and walkways for leaves. Remove surface debris only where it is safe. Catch basins on private property are the owner's responsibility. If a drain is underwater, do not try to clear it. In Chicago, report blocked drains and flooding through 311; elsewhere, call your local public works department.

Follow your municipality's collection instructions. For example, Lisle's program tells residents to place loose leaves near the curb on the grassy strip beside the road, rather than in the street, on sidewalks or in ditches. Readers elsewhere should check their own municipality's rules.

These are published seasonal maintenance recommendations, not a new flood warning. The photographs illustrate the work and the drainage problem; they do not announce an advisory for this week.

Beyond Chicago: travel and deliveries

Check the West Coast forecast before arranging travel or deliveries. NOAA's latest hazards outlook indicates a risk of heavy rain, coastal wind and mountain snow in parts of Washington, Oregon and California around November 13 to 15. Conditions will vary by location, and the outlook may change.

What to do
Travel Before booking or departing, check the forecast for the destination and travel route.
Deliveries Ask your carrier whether important deliveries pass through areas where severe weather is forecast and whether delivery dates could change.

Check with your airline or carrier for any confirmed delays or closures.

Next issue

Our next issue will look at what the climate talks could mean for Chicago businesses. COP31 takes place in Antalya, Türkiye, November 9 to 20. We plan to look at which developments could matter for Chicago businesses, alongside the next NOAA climate update.

What decision are you watching? Reply with details of an outdoor job, delivery or event, including the location and date. We'll help you identify the forecast information that matters for your plans.

Forecast values come from the latest NWS and NOAA forecasts available when this issue was finalized; check the latest forecast before acting. The business actions are Tempra's interpretation, not official agency ratings. Follow official warnings, site procedures and product specifications. Forecast and outlook data come from NOAA and the National Weather Service; maintenance guidance from the City of Chicago, MWRD and the Villages of Bloomingdale and Lisle.

ShareLinkedInLinkedInFacebookFacebookXXForwardForward

Got this from someone else? Subscribe


Tempra Signal is the weekly newsletter from Tempra Labs, a Chicago-based climate and weather intelligence company. Follow us: LinkedIn · tempralabs.ai

Tempra Labs Inc. | contact@tempralabs.ai