Cook County Vær Værmelding
Cook County weather: 12°C, overskyet. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.
Will it rain in Cook County?
No - rain is unlikely in Cook County today.
Regn is very unlikely today - plans do not need a backup.
Over the next 7 days, about 7 mm of precipitation is forecast, med the wettest days falling on søn.
The next 7 days look unusually dry - roughly 35% of a normal oktober week (7 mm against 18 mm).
16-day forecast for Cook County
Maks. / Min.; Nedbør; UV
| Dag | Forhold | Maks. / Min. | Nedbør | Vind | UV |
|---|---|---|---|---|---|
| tir, okt 27 | ☁️ Overskyet | 18° / 12° | 6% | 16 km/h | 3 |
| ons, okt 28 | ☁️ Overskyet | 23° / 10° | 3% | 17 km/h | 4 |
| tor, okt 29 | 🌦️ Yr | 19° / 14° | 14% · 2 mm | 19 km/h | 2 |
| fre, okt 30 | ☁️ Overskyet | 14° / 12° | 21% | 15 km/h | 3 |
| lør, okt 31 | 🌦️ Light drizzle | 16° / 13° | 34% · 1 mm | 18 km/h | 2 |
| søn, nov 1 | 🌦️ Yr | 14° / 12° | 44% · 5 mm | 15 km/h | 0 |
| man, nov 2 | ☁️ Overskyet | 14° / 13° | 38% | 16 km/h | 1 |
| tir, nov 3 | ☁️ Overskyet | 14° / 12° | 48% | 23 km/h | 2 |
| ons, nov 4 | 🌦️ Lett regn | 12° / 11° | 46% · 6 mm | 24 km/h | 1 |
| tor, nov 5 | 🌦️ Yr | 12° / 11° | 31% · 11 mm | 23 km/h | 1 |
| fre, nov 6 | 🌦️ Light drizzle | 12° / 10° | 13% · 3 mm | 26 km/h | 1 |
| lør, nov 7 | 🌦️ Light drizzle | 11° / 9° | 29% · 0 mm | 16 km/h | 3 |
| søn, nov 8 | ☁️ Overskyet | 14° / 7° | 26% | 14 km/h | 3 |
| man, nov 9 | 🌦️ Lett regn | 15° / 9° | 23% · 5 mm | 26 km/h | 2 |
| tir, nov 10 | ☁️ Overskyet | 9° / 4° | 19% | 23 km/h | 1 |
| ons, nov 11 | ☁️ Overskyet | 6° / 1° | 30% | 19 km/h | 3 |
What this means for Cook County
Today is about average for oktober. The forecast high of 18°C is in line med the 18°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni til august.
The gap between the warmest and coldest month averages 29°C.
What til pack, what til skip
- Layers - the daily swing is 13°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid januar, februar and desember - historically the least comfortable months here.
Se prognosen for Cook County etter tidsintervall
Cook County weather - more answers
Explore Cook County
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Frequently asked questions
Where is Cook County?
Cook County is a county in Illinois. Its coordinates are 41.8781, -87.6298. It lies in Nord-Amerika.
What is the weather like in Cook County akkurat nå?
It is currently 12°C (54°F) med overskyet. Luftfuktighet is 95% and wind is 14 km/h.
When is the best time til visit Cook County?
mai, juni, august, september and oktober offer the most comfortable conditions in Cook County, which has a continental climate. januar, februar and desember are usually the hardest months for outdoor plans.
What time zone is Cook County in?
Cook County observes America/Chicago (UTC-05:00). The local time is 8:31 PM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airport til Cook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things til do in Cook County?
Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vær Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated oktober 27, 2026 at 8:31 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
