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Chicago, IL Weather Forecast

View the 9-day weather forecast for Chicago, Illinois, including daily highs and lows, rain chances, rainfall amounts, wind speeds, humidity, and short-range versus extended OrbitalFusion guidance.

The latest 9-day OrbitalFusion forecast for Chicago, Illinois is in. The warmest stretch peaks on Wed near 94, while the coolest low settles in on Mon near 58. The best rain signal shows up on Sat at 85 percent and about 2.46 inches. The outlook starts with a near-term signal before shifting to extended signal later in the period.

Forecast data updated daily. Showing the latest available OrbitalFusion forecast for Chicago, Illinois.

Last updated:

Latest OrbitalFusion forecast loaded for Chicago, Illinois.

About OrbitalFusion
OrbitalFusion is an experimental forecast system developed by Engineer.Guide Research and Development Lab. Forecast pages are precomputed daily and refreshed on an automated schedule.

9-Day Outlook for Chicago, Illinois

A scan-first 9-day view generated for fast daily reading, with the main call for each day and the core details underneath.

OrbitalFusion Thunder Index is a 0-100 signal that blends near-term storm ingredients with extended pattern guidance.

Today's Weather Story
Today looks rain likelywith a low-to-moderate rain chance, wind near 26 mph, and humid air, and a minimal storm signal.
National Weather Service
Flood Watch
Flood Watch issued June 10 at 6:54PM CDT until June 11 at 4:00AM CDT by NWS Chicago IL
Severe · Future · Starts 2026-06-10T18:54:00-05:00 · Expires 2026-06-11T03:00:00-05:00
Check Hourly Timing
A quick look at the next several hours for temperature, rain chance, wind, and storm signal.
2 PM ET
91°
Sunny
Precip 0% · Wind 13 mph
Minimal Storm Signal · Near-Term Signal
3 PM ET
94°
Partly Cloudy
Precip 0% · Wind 16 mph
Minimal Storm Signal · Near-Term Signal
4 PM ET
93°
Mostly Cloudy
Precip 0% · Wind 19 mph
Minimal Storm Signal · Near-Term Signal
5 PM ET
73°
Rain
Precip 55% · Wind 26 mph
Minimal Storm Signal · Near-Term Signal
6 PM ET
73°
Rain
Precip 20% · Wind 15 mph
Minimal Storm Signal · Near-Term Signal
7 PM ET
75°
Mostly Cloudy
Precip 0% · Wind 8 mph
Minimal Storm Signal · Near-Term Signal
8 PM ET
74°
Cloudy
Precip 0% · Wind 6 mph
Minimal Storm Signal · Near-Term Signal
9 PM ET
74°
Sunny
Precip 0% · Wind 2 mph
Minimal Storm Signal · Near-Term Signal
10 PM ET
73°
Sunny
Precip 0% · Wind 2 mph
Minimal Storm Signal · Near-Term Signal
11 PM ET
72°
Rain
Precip 35% · Wind 11 mph
Minimal Storm Signal · Near-Term Signal
12 AM ET
71°
Cloudy
Precip 0% · Wind 7 mph
Minimal Storm Signal · Near-Term Signal
1 AM ET
71°
Cloudy
Precip 0% · Wind 11 mph
Minimal Storm Signal · Near-Term Signal
Wed
Jun 10
94°
Low 73°
Near-Term Signal
Rain likely
Precip 55% · Rain 0.27 in · Wind 26 mph · Humidity 89%
OrbitalFusion Thunder Index
1/100
Minimal Storm Signal
Storm Signal
Early guidance signal
Thu
Jun 11
90°
Low 67°
Near-Term Signal
Light rain possible
Precip 35% · Rain 0.09 in · Wind 22 mph · Humidity 94%
OrbitalFusion Thunder Index
0/100
Minimal Storm Signal
Storm Signal
Early guidance signal
Fri
Jun 12
78°
Low 64°
Extended Signal
Mostly quiet
Precip 0% · Rain 0.00 in · Wind 13 mph · Humidity 82%
OrbitalFusion Thunder Index
7/100
Minimal Storm Signal
Storm Signal
Early guidance signal
Sat
Jun 13
81°
Low 67°
Extended Signal
Steady rain likely
Precip 85% · Rain 2.46 in · Wind 16 mph · Humidity 78%
OrbitalFusion Thunder Index
63/100
Strong Storm Risk
Storm Signal
Early guidance signal
Storm signal elevated - check timing and radar.
Check hourly timing Radar near Chicago
Sun
Jun 14
70°
Low 64°
Extended Signal
Light rain possible
Precip 55% · Rain 0.22 in · Wind 13 mph · Humidity 88%
OrbitalFusion Thunder Index
42/100
Thunderstorm Possible
Storm Signal
Early guidance signal
Check hourly timing Radar near Chicago
Mon
Jun 15
70°
Low 58°
Extended Signal
Steady rain likely
Precip 85% · Rain 0.80 in · Wind 10 mph · Humidity 79%
OrbitalFusion Thunder Index
56/100
Thunderstorm Possible
Storm Signal
Early guidance signal
Check hourly timing Radar near Chicago
Tue
Jun 16
76°
Low 60°
Extended Signal
Light rain possible
Precip 70% · Rain 0.39 in · Wind 9 mph · Humidity 82%
OrbitalFusion Thunder Index
40/100
Thunderstorm Possible
Storm Signal
Early guidance signal
Check hourly timing Radar near Chicago
Wed
Jun 17
75°
Low 61°
Extended Signal
Light rain possible
Precip 70% · Rain 0.43 in · Wind 13 mph · Humidity 84%
OrbitalFusion Thunder Index
43/100
Thunderstorm Possible
Storm Signal
Early guidance signal
Check hourly timing Radar near Chicago
Thu
Jun 18
78°
Low 73°
Extended Signal
Light rain possible
Precip 55% · Rain 0.20 in · Wind 19 mph · Humidity 79%
OrbitalFusion Thunder Index
44/100
Thunderstorm Possible
Storm Signal
Early guidance signal
Check hourly timing Radar near Chicago
Official alerts, when active, come from the National Weather Service.

Nearby Forecasts

Quick links to a few nearby cities if you want to compare the next 9 days around Chicago, Illinois.

Browse all OrbitalFusion pages