Cook County Väder Prognos
Cook County weather: 17°C, mulet. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Sammanfattning
Cook County is a county in Illinois. Cook County is a county in the United States. Befolkningen är cirka 5.1 million.
Just nu är det 17°C (62°F) in Cook County med mulet. Det känns som 17°C. I dag varierar temperaturen mellan 15°C och 18°C. Risken för nederbörd är 92%. Sightseeing conditions score 7.5/10 - bra förhållanden.
Bästa tiden att besöka Cook County is maj, juni, augusti, september and oktober. Klimatet är continental. januari, februari and december tend och be the least comfortable months. juli is the warmest month med average highs near 28°C, while januari is the coldest med lows near -8°C.
The closest major airport is O'Hare International Airport (ORD), about 25 km away. Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
Enkelt förklarat. Today is cooler than average for september. The forecast high of 18°C is 5.9°C below the 24°C typical for this month. The best window och be outside is roughly 10 AM och 1 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Cook County today at 9.7/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Cook County
Hydrologic Outlook issued september 30 at 1:02PM CDT by NWS Chicago IL
Issued by NWS Chicago IL
Vädret i Cook County just nu
Open-Meteo Updated 10:47 PM, sep 30 local time.
Se prognosen för Cook County per tidsintervall
Nästa 24 timmar
Temperatur, nederbörd och vind timme för timme.
16-day forecast for Cook County
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| ons, sep 30 | 🌧️ Regn | 18° / 15° | 92% · 13 mm | 16 km/h | 2 |
| tor, okt 1 | 🌧️ Regn | 22° / 16° | 69% · 10 mm | 20 km/h | 1 |
| fre, okt 2 | ☁️ Mulet | 15° / 13° | 35% | 21 km/h | 5 |
| lör, okt 3 | ⛅ Delvis molnigt | 18° / 13° | 0% | 17 km/h | 5 |
| sön, okt 4 | ☁️ Mulet | 21° / 13° | 1% | 19 km/h | 5 |
| mån, okt 5 | ☀️ Klart | 15° / 12° | 0% | 20 km/h | 5 |
| tis, okt 6 | 🌤️ Mest klart | 18° / 9° | 0% | 15 km/h | 5 |
| ons, okt 7 | 🌦️ Light drizzle | 21° / 12° | 7% · 1 mm | 19 km/h | 4 |
| tor, okt 8 | ⛅ Delvis molnigt | 22° / 12° | 3% | 10 km/h | 5 |
| fre, okt 9 | ☁️ Mulet | 22° / 14° | 2% | 16 km/h | 4 |
| lör, okt 10 | ☀️ Klart | 27° / 17° | 8% | 20 km/h | 5 |
| sön, okt 11 | 🌦️ Duggregn | 22° / 17° | 15% · 1 mm | 20 km/h | 3 |
| mån, okt 12 | 🌦️ Duggregn | 16° / 12° | 19% · 4 mm | 32 km/h | 1 |
| tis, okt 13 | 🌦️ Light drizzle | 16° / 11° | 19% · 0 mm | 12 km/h | 4 |
| ons, okt 14 | ☁️ Mulet | 20° / 10° | 19% | 11 km/h | 4 |
| tor, okt 15 | 🌦️ Light showers | 16° / 6° | 12% · 29 mm | 35 km/h | 1 |
Klimat in Cook County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | -2° | -8° | 73 mm | ★★☆☆☆ |
| februari | 4° | -4° | 19 mm | ★★★☆☆ |
| mars | 11° | 1° | 103 mm | ★★★☆☆ |
| april | 15° | 6° | 113 mm | ★★★☆☆ |
| maj | 20° | 11° | 68 mm | ★★★★☆ |
| juni | 26° | 18° | 126 mm | ★★★★☆ |
| juli | 28° | 20° | 127 mm | ★★★★☆ |
| augusti | 27° | 19° | 116 mm | ★★★★☆ |
| september | 24° | 17° | 74 mm | ★★★★☆ |
| oktober | 18° | 10° | 79 mm | ★★★★☆ |
| november | 10° | 3° | 68 mm | ★★★☆☆ |
| december | 3° | -3° | 68 mm | ★★☆☆☆ |
Klimat type: Kontinental. Källa: Open-Meteo archive (ERA5).
Väder map for Cook County
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Luftkvalitet and pollen in Cook County
Luftkvalitet: Open-Meteo (CAMS). US AQI scale.
sön, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Bästa tiden att besöka Cook County
Go in maj, juni, augusti, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.
Explore Cook County
Every topic we hold for this place, and the same topic for the places around it.
Väder for related places
Frequently asked questions
Where is Cook County?
Cook County is a county in Illinois. Its coordinates are 41.8781, -87.6298. It lies in Nordamerika.
What is the weather like in Cook County just nu?
It is currently 17°C (62°F) med mulet. Luftfuktighet is 91% and wind is 6 km/h.
When is the best time och visit Cook County?
maj, juni, augusti, september and oktober offer the most comfortable conditions in Cook County, which has a continental climate. januari, februari and december 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 10:47 PM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airport och Cook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 september 30, 2026 at 10:47 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
