Illinois Meteo Previsioni
Illinois weather: 19°C, parzialmente nuvoloso. Orario forecast, 14-day outlook, UV, air quality and the best time a visit.
Illinois weather in marzo
A workable month, con trade-offs.
marzo runs 4°C cooler than the annual average in Illinois.
Meteo map for Illinois
Animated model layers. Pick a layer a load it.
Animated layers by Ventoy. For pin-level detail and nearby places, see the interactive map below.
Clima in Illinois month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mese | Massima media | Minima media | Precipitazioni | Valutazione |
|---|---|---|---|---|
| gennaio | 1° | -7° | 62 mm | ★★☆☆☆ |
| febbraio | 8° | -3° | 20 mm | ★★★☆☆ |
| marzo | 15° | 4° | 90 mm | ★★★☆☆ |
| aprile | 19° | 9° | 135 mm | ★★★☆☆ |
| mag | 24° | 13° | 100 mm | ★★★★☆ |
| giugno | 28° | 19° | 117 mm | ★★★★☆ |
| luglio | 29° | 21° | 129 mm | ★★★★☆ |
| agosto | 29° | 19° | 75 mm | ★★★★☆ |
| settembre | 28° | 17° | 33 mm | ★★★★★ |
| ottobre | 20° | 10° | 37 mm | ★★★★☆ |
| novembre | 12° | 4° | 79 mm | ★★★☆☆ |
| dicembre | 6° | -2° | 62 mm | ★★☆☆☆ |
Clima type: Continenteal. Fonte: Open-Meteo archive (ERA5).
Periodo migliore per visitare Illinois
Go in agosto, settembre and ottobre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: gennaio, febbraio and dicembre – expect the least comfortable mix of heat, cold or rain.
What a pack, what a skip
- domglasses, a brimmed hat and SPF 30+
- Layers – the daily swing is 20°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid gennaio, febbraio and dicembre – historically the least comfortable months here.
How Illinois compares con nearby places
Annual averages, and the difference against Illinois.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Gateway Arch National Park | 137 km | 15°C | +1°C warmer | 1156 mm |
| St. Louis | 137 km | 15°C | +1°C warmer | 1156 mm |
| Missouri | 255 km | 15°C | +1°C warmer | 1006 mm |
| Indianapolis | 298 km | 13°C | 1°C cooler | 1135 mm |
| Indiana | 298 km | 13°C | 1°C cooler | 1135 mm |
Vedi le previsioni di Illinois per periodo
Illinois weather – more answers
Explore Illinois
Every topic we hold for this place, and the same topic for the places around it.
Meteo for related places
Frequently asked questions
Where is Illinois?
Illinois is a state in Stati Uniti. Its coordinates are 39.7817, -89.6501. It lies in America del Nord.
What is the weather like in Illinois ora?
It is currently 19°C (65°F) con parzialmente nuvoloso. Umidità is 44% and wind is 8 km/h.
When is the best time a visit Illinois?
agosto, settembre and ottobre offer the most comfortable conditions in Illinois, which has a continental climate. gennaio, febbraio and dicembre are usually the hardest months for outdoor plans.
What time zone is Illinois in?
Illinois observes America/Chicago (UTC-05:00). The ora locale is 7:12 PM.
How many people live in Illinois?
Illinois has a population of approximately 12.6 million.
What is the nearest airport a 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 a 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. |
|---|---|
| Previsioni and observations | Open-Meteo (ECMWF and national models). |
| Qualità dell’aria and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Meteo 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 ottobre 25, 2026 at 7:12 PM ora locale. Live blocks refresh every 15 minutes; climate averages monthly.
