Illinois Καιρός Πρόγνωση
Illinois weather: 18°C, Αίθριος. Ανά ώρα forecast, 14-day outlook, UV, air quality and the best time έως visit.
14-day forecast for Illinois
Μέγ. / Ελάχ.; Υετός; UV
| Ημέρα | Συνθήκες | Μέγ. / Ελάχ. | Υετός | Άνεμος | UV |
|---|---|---|---|---|---|
| Παρ, Οκτ 23 | 🌤️ Κυρίως αίθριος | 24° / 7° | 0% | 10 km/h | 4 |
| Σαβ, Οκτ 24 | ☁️ Νεφελώδης | 24° / 9° | 2% | 11 km/h | 4 |
| Κυρ, Οκτ 25 | ☁️ Νεφελώδης | 24° / 10° | 2% | 10 km/h | 4 |
| Δευ, Οκτ 26 | ☁️ Νεφελώδης | 24° / 14° | 0% | 9 km/h | 4 |
| Τρι, Οκτ 27 | ☁️ Νεφελώδης | 23° / 14° | 1% | 14 km/h | 3 |
| Τετ, Οκτ 28 | ☁️ Νεφελώδης | 25° / 13° | 2% | 21 km/h | 4 |
| Πεμ, Οκτ 29 | ☁️ Νεφελώδης | 27° / 15° | 6% | 19 km/h | 4 |
| Παρ, Οκτ 30 | ☁️ Νεφελώδης | 26° / 16° | 10% | 13 km/h | 3 |
| Σαβ, Οκτ 31 | 🌦️ Light drizzle | 18° / 15° | 41% · 2 mm | 27 km/h | 0 |
| Κυρ, Νοέ 1 | 🌦️ Light drizzle | 20° / 9° | 39% · 1 mm | 29 km/h | 2 |
| Δευ, Νοέ 2 | 🌤️ Κυρίως αίθριος | 16° / 6° | 24% | 21 km/h | 4 |
| Τρι, Νοέ 3 | ☁️ Νεφελώδης | 14° / 6° | 25% | 21 km/h | 3 |
| Τετ, Νοέ 4 | ☁️ Νεφελώδης | 16° / 6° | 16% | 19 km/h | 3 |
| Πεμ, Νοέ 5 | ☁️ Νεφελώδης | 22° / 7° | 17% | 12 km/h | 4 |
The two-week trend
Cooling. The second half of the window averages 5°C cooler than the days immediately ahead.
The window averages 22°C against a Οκτώβριος normal of 20°C - 2°C above.
The next 7 days look unusually dry - roughly 0% of a normal Οκτώβριος week (0 mm against 9 mm).
What this means for Illinois
Today is slightly warmer than average for Οκτώβριος. The forecast high of 24°C is 3.6°C above the 20°C typical for this month.
Βροχή 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 Ιούνιος έως Αύγουστος.
The gap between the warmest and coldest month averages 29°C.
What έως pack, what έως skip
- Κυρglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 19°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid Ιανουάριος, Φεβρουάριος and Δεκέμβριος - historically the least comfortable months here.
Δείτε την πρόγνωση για Illinois ανά χρονικό διάστημα
Illinois weather - more answers
Explore Illinois
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Frequently asked questions
Where is Illinois?
Illinois is a state in Ηνωμένες Πολιτείες. Its coordinates are 39.7817, -89.6501. It lies in Βόρεια Αμερική.
What is the weather like in Illinois τώρα?
It is currently 18°C (64°F) με Αίθριος. Υγρασία is 39% and wind is 8 km/h.
When is the best time έως visit Illinois?
Αύγουστος, Σεπτέμβριος and Οκτώβριος offer the most comfortable conditions in Illinois, which has a continental climate. Ιανουάριος, Φεβρουάριος and Δεκέμβριος 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 5:34 AM.
How many people live in Illinois?
Illinois has a population of approximately 12.6 million.
What is the nearest airport έως 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 έως 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. |
|---|---|
| Πρόγνωση and observations | Open-Meteo (ECMWF and national models). |
| Ποιότητα αέρα and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Κλίμα averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Καιρός 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 Οκτώβριος 24, 2026 at 5:34 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
