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St. Jacob, IL Weather Forecast

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St. Jacob, IL Weather Forecast

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St. Jacob IL weather - Clear - 68°F
Clear
68°F
Updated 2:49 pm
Feels Like 63°F
Humidity 49%
Wind W 5 mph
Barometer  30.06 in
Dew Point 48°F
St. Jacob IL weather - Clear - 20°C
Clear
20°C
Updated 2:49 pm
Feels Like 17°C
Humidity 49%
Wind W 8 km/h
Barometer  101.8 kPa
Dew Point 9°C
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St. Jacob Weather Forecast

THIS AFTERNOON TONIGHT VETERANS DAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY SUNDAY NIGHT MONDAY
St. Jacob, IL Weather - This Afternoon Sunny St. Jacob, IL Weather - Tonight Partly Cloudy St. Jacob, IL Weather - Veterans Day Mostly Sunny St. Jacob, IL Weather - Wednesday Night Mostly Clear St. Jacob, IL Weather - Thursday Mostly Sunny St. Jacob, IL Weather - Thursday Night Mostly Clear St. Jacob, IL Weather - Friday Mostly Clear St. Jacob, IL Weather - Friday Night Mostly Clear St. Jacob, IL Weather - Saturday Mostly Clear St. Jacob, IL Weather - Sunday Mostly Sunny St. Jacob, IL Weather - Sunday Night Chance Of Rain St. Jacob, IL Weather - Monday Mostly Sunny
Sunny Partly Cloudy Mostly Sunny Mostly Clear Mostly Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Sunny Chance of Rain Mostly Sunny
Hi: 71°FHi: 22°C
 Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
 Lo: 40°FLo: 4°C Hi: 50°FHi: 10°C
 Hi: 45°FHi: 7°C
Lo: 31°FLo: -1°C		 Hi: 45°FHi: 7°C
Lo: 31°FLo: -1°C		 Hi: 49°FHi: 9°C
Lo: 29°FLo: -2°C		 Hi: 49°FHi: 9°C
Lo: 29°FLo: -2°C		 Hi: 51°FHi: 11°C
 Lo: 35°FLo: 2°C Hi: 55°FHi: 13°C
POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 133 PM CST Tue Nov 10 2026 St. Jacob, IL Weather - WeatherWorld.com

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Issued: 153 PM CST Tue Nov 10 2026

Key Messages

  • Mild weather comes to an end on Wednesday as a strong cold front brings gusty winds and much colder weather.

Aviation

/18Z TAFS THROUGH 00Z THURSDAY/... Issued at 1120 AM CST Tue Nov 10 2026

VFR conditions in light winds continue through this evening. Winds turn southwesterly ahead of a cold front by Wednesday morning. With increased moisture overnight there will be at least some potential for valley fog if surface winds remain light. However, latest expectation is winds pick up after m...