World > North America > United States > Illinois > St. James  

St. James, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

St. James, IL Weather Forecast

Current Conditions

Settings
St. James IL weather - Clear - 75°F
Clear
75°F
Updated 1:23 pm
Feels Like 69°F
Humidity 36%
Wind ENE 7 mph
Barometer  30.11 in
Dew Point 47°F
St. James IL weather - Clear - 24°C
Clear
24°C
Updated 1:23 pm
Feels Like 21°C
Humidity 36%
Wind ENE 11 km/h
Barometer  102 kPa
Dew Point 8°C
WX Settings

St. James Weather Forecast

THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
St. James, IL Weather - This Afternoon Mostly Sunny St. James, IL Weather - Tonight Partly Cloudy St. James, IL Weather - Sunday Sunny St. James, IL Weather - Sunday Night Partly Cloudy St. James, IL Weather - Columbus Day Sunny St. James, IL Weather - Monday Night Clear St. James, IL Weather - Tuesday Clear St. James, IL Weather - Tuesday Night Chance Of T-Storm St. James, IL Weather - Wednesday Chance Of T-Storm St. James, IL Weather - Wednesday Night Chance Of T-Storm St. James, IL Weather - Thursday Chance Of T-Storm St. James, IL Weather - Thursday Night Chance Of Showers
Mostly Sunny Partly Cloudy Sunny Partly Cloudy Sunny Clear Clear Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers
Hi: 79°FHi: 26°C
 Lo: 51°FLo: 11°C Hi: 85°FHi: 29°C
 Lo: 60°FLo: 16°C Hi: 91°FHi: 33°C
 Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C		 Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C		 Lo: 60°FLo: 16°C Hi: 79°FHi: 26°C
 Hi: 79°FHi: 26°C
Lo: 59°FLo: 15°C		 Hi: 79°FHi: 26°C
Lo: 59°FLo: 15°C		 Lo: 51°FLo: 11°C
POP: 40% POP: 60% POP: 50% POP: 50% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1148 AM CDT Sat Oct 10 2026 St. James, IL Weather - WeatherWorld.com

Trending Headlines

St. James Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

St. James Quick Facts

National Two Day Weather Forecast


E-mail the St. James Weather Forecast

Voice your opinion or tell us about page issues...

St. James Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 1215 PM CDT Sat Oct 10 2026

Key Messages

  • Temperatures will be up to 10 degrees cooler over parts of the area today before warming back to near record warmth on Monday.

Aviation

/18Z TAFS THROUGH 00Z MONDAY/... Issued at 1213 PM CDT Sat Oct 10 2026

VFR conditions continue underneath a blanket of high level clouds on the periphery of the remnants of Isaias. Even these clouds begin to pull away to the east this evening, leaving a clear sky and calm winds for much of the area. This creates the potential for valley fog, with the gr...