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Chicago, Illinois — 7-Day Severe Weather Forecast
Updated
Today — Friday, October 9: No Severe Threat
Primary hazards: lightning
Friday will be mostly cloudy with a slight chance for showers. The high temperature will be around 65 degrees, with a low near 56. No severe weather is expected.
Tomorrow — Friday, October 9: No Severe Threat
Scattered rain showers are possible, with some clouds expected throughout the day. The high temperature will be around 72°F, falling to near 61°F overnight. Severe weather is not anticipated, but lightning is possible with any thunder.
Day 3 — Sunday, October 11: No Severe Threat
Sunday is forecast to be mostly sunny with comfortable temperatures, reaching a high of about 72 degrees and a low near 63 degrees. There is a slight chance of rain, but overall dry conditions are expected. No strong storms are anticipated.
Extended Outlook (Days 4–7)
Day 4 — Monday, October 12: No Severe Threat
High temperatures are expected to reach around 80 degrees, with overnight lows falling to 63 degrees. Both forecasts bring rain, between about 0.06 and 0.23 inches. The forecasts disagree on how much rain there will be. Any storms that develop are unlikely to be strong.
Day 5 — Tuesday, October 13: No Severe Threat
Temperatures will be mild on Tuesday, with a high near 68 degrees and a low around 58 degrees. One forecast suggests about 0.12 inches of rain, while another keeps the day essentially dry. Showers are possible during the day, with a 44% chance of rain. Any storms that develop are unlikely to be strong.
Day 6 — Wednesday, October 14: No Severe Threat
High temperatures will reach 59 degrees, with lows around 55 degrees. Showers are possible, especially at night, but models disagree significantly on rainfall amounts; one suggests around 1.20 inches of rain, while another keeps the day mostly dry. While some showers are possible, conditions are not expected to support strong storms.
Day 7 — Thursday, October 15: No Severe Threat
Showers and thunderstorms are likely on Thursday, with approximately 0.50 to 0.69 inches of rain expected. Temperatures will reach a high of 70 degrees Fahrenheit and fall to a low of 57 degrees Fahrenheit. Any storms that develop are not expected to be strong.
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Written by AI from weather-model data and Storm Prediction Center outlooks. For information only: not a substitute for official National Weather Service watches and warnings. Full disclaimer