Illinois Vær Værmelding
Illinois weather: 22°C, overskyet. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.
Sammendrag
Illinois is a state in USA. Illinois is a US state med hovedstad Springfield. Befolkningen er rundt 12.6 million. Hovedstaden er Springfield.
Akkurat nå er det 22°C (72°F) in Illinois med overskyet. Det føles som 23°C. I dag varierer temperaturen mellom 19°C til 28°C. Sannsynligheten for nedbør er 18%. Sightseeing conditions score 9.2/10 - utmerket — dra nå.
Beste tidspunkt å besøke Illinois is august, september and oktober. Klimaet er continental. januar, februar and desember tend til be the least comfortable months. juli is the warmest month med average highs near 29°C, while januar is the coldest med lows near -7°C.
The closest major airport is O'Hare International Airport (ORD), about 284 km away. Nearby highlights include Starved Rock State Park, Lake Michigan, Gateway Arch National Park and Indiana Dunes National Park.
Kort sagt. Today is about average for september. The forecast high of 28°C is in line med the 28°C typical for this month. The best window til be outside is roughly 7 AM til 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Illinois today at 9.4/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Været i Illinois akkurat nå
Open-Meteo Updated 9:07 PM, sep 30 local time.
Se prognosen for Illinois etter tidsintervall
Neste 24 timer
Temperatur, nedbørssannsynlighet og vind time for time.
16-day forecast for Illinois
Maks. / Min.; Nedbør; UV
| Dag | Forhold | Maks. / Min. | Nedbør | Vind | UV |
|---|---|---|---|---|---|
| ons, sep 30 | ☁️ Overskyet | 28° / 19° | 18% | 11 km/h | 2 |
| tor, okt 1 | 🌧️ Regn | 28° / 18° | 61% · 21 mm | 25 km/h | 2 |
| fre, okt 2 | 🌦️ Yr | 19° / 12° | 63% · 1 mm | 19 km/h | 5 |
| lør, okt 3 | ☀️ Klar himmel | 23° / 9° | 1% | 14 km/h | 5 |
| søn, okt 4 | ☀️ Klar himmel | 23° / 12° | 1% | 18 km/h | 5 |
| man, okt 5 | ☀️ Klar himmel | 20° / 9° | 0% | 15 km/h | 5 |
| tir, okt 6 | 🌤️ Mest klart | 20° / 6° | 0% | 14 km/h | 5 |
| ons, okt 7 | 🌦️ Light drizzle | 24° / 11° | 2% · 1 mm | 21 km/h | 4 |
| tor, okt 8 | ☀️ Klar himmel | 23° / 9° | 2% | 12 km/h | 5 |
| fre, okt 9 | ☁️ Overskyet | 27° / 11° | 1% | 18 km/h | 5 |
| lør, okt 10 | ☁️ Overskyet | 29° / 15° | 4% | 27 km/h | 5 |
| søn, okt 11 | 🌧️ Regn | 21° / 15° | 10% · 19 mm | 19 km/h | 0 |
| man, okt 12 | 🌦️ Light drizzle | 17° / 12° | 15% · 0 mm | 23 km/h | 3 |
| tir, okt 13 | 🌦️ Light drizzle | 18° / 11° | 16% · 1 mm | 10 km/h | 5 |
| ons, okt 14 | ☁️ Overskyet | 23° / 10° | 16% | 15 km/h | 5 |
| tor, okt 15 | 🌦️ Light showers | 16° / 6° | 7% · 16 mm | 36 km/h | 0 |
Klima in Illinois month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 1° | -7° | 62 mm | ★★☆☆☆ |
| februar | 8° | -3° | 20 mm | ★★★☆☆ |
| mars | 15° | 4° | 90 mm | ★★★☆☆ |
| april | 19° | 9° | 135 mm | ★★★☆☆ |
| mai | 24° | 13° | 100 mm | ★★★★☆ |
| juni | 28° | 19° | 117 mm | ★★★★☆ |
| juli | 29° | 21° | 129 mm | ★★★★☆ |
| august | 29° | 19° | 75 mm | ★★★★☆ |
| september | 28° | 17° | 33 mm | ★★★★★ |
| oktober | 20° | 10° | 37 mm | ★★★★☆ |
| november | 12° | 4° | 79 mm | ★★★☆☆ |
| desember | 6° | -2° | 62 mm | ★★☆☆☆ |
Klima type: Kontinental. Kilde: Open-Meteo archive (ERA5).
Vær map for Illinois
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Luftkvalitet and pollen in Illinois
Luftkvalitet: Open-Meteo (CAMS). US AQI scale.
søn, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Beste tid å besøke Illinois
Go in august, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and desember - expect the least comfortable mix of heat, cold or rain.
Vær by city in Illinois
1 cities mapped in this atlas
Vær by state park in Illinois
1 state and provincial parks mapped in this atlas
Vær by county in Illinois
1 counties mapped in this atlas
Vær by lake in Illinois
1 lakes mapped in this atlas
Explore Illinois
Every topic we hold for this place, and the same topic for the places around it.
Vær for related places
Frequently asked questions
Where is Illinois?
Illinois is a state in USA. Its coordinates are 39.7817, -89.6501. It lies in Nord-Amerika.
What is the weather like in Illinois akkurat nå?
It is currently 22°C (72°F) med overskyet. Luftfuktighet is 75% and wind is 10 km/h.
When is the best time til visit Illinois?
august, september and oktober offer the most comfortable conditions in Illinois, which has a continental climate. januar, februar and desember are usually the hardest months for outdoor plans.
What time zone is Illinois in?
Illinois observes America/Chicago (UTC-05:00). The local time is 9:07 PM.
How many people live in Illinois?
Illinois has a population of approximately 12.6 million.
What is the nearest airport til Illinois?
The closest airports are O'Hare International Airport (ORD), 284 km away and Nashville International Airport (BNA), 483 km away.
What are the top things til do in Illinois?
Popular options include Starved Rock State Park, Lake Michigan, Gateway Arch National Park and Indiana Dunes National Park.
What places are in Illinois?
Illinois covers 4 places in this atlas, including Chicago, Starved Rock State Park, Cook County and Lake Michigan.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - 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 september 30, 2026 at 9:07 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
