
In the Pacific Northwest into northern California, areas of heavy rain for the coastal ranges and heavy snowfall over the higher elevations of the Cascades are expected into Friday. Dry and windy conditions may produce elevated fire weather conditions in the central and southern High Plains and the Upper Midwest. Windy conditions and scattered rain and snow showers will continue in the Northeast. Read More >
Chicago, IL
Weather Forecast Office
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![]() | National Weather Service Chicago, IL Weather Impact Matrix for MDW Midway Airport Valid: 09/24/2023 06 PM - 09/25/2023 04 AM CDT Call 1-815-834-0651 for additional weather support | ![]() |
Issued: Sunday September 24, 2023 06:05 PM CDT |
| Threat Level | None | Limited | Elevated | Significant | Extreme |
| Temperature | ≥100 °F | 100 to 96 °F | 95 to 91 °F | 90 to 86 °F | ≤85 °F |
| Wind Chill | ≥105 °F | 105 to 101 °F | 100 to 96 °F | 95 to 91 °F | ≤90 °F |
| Wind Speed | ≤20 mph | 20 to 24 mph | 25 to 29 mph | 30 to 39 mph | ≥40 mph |
| Wind Gust | ≤30 mph | 30 to 34 mph | 35 to 44 mph | 45 to 59 mph | ≥60 mph |
| Chance of Precipitation | ≤15 % | 15 to 24 % | 25 to 54 % | 55 to 74 % | ≥75 % |
| Sky Cover | ≤20 % | 20 to 39 % | 40 to 59 % | 60 to 79 % | ≥80 % |
| Lightning Activity Level | ≥5 | 5 to 5 | 4 to 4 | 3 to 3 | ≤2 |
| Note - | Grey color indicates no thresholds assigned |
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Romeoville, IL 60446
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