St. Joseph, IL Weather Forecast

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St. Joseph, IL Weather Forecast

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St. Joseph IL weather  - Mostly Cloudy - 38°F
Mostly Cloudy
38°F
Updated 10:54 pm
Feels Like 31°F
Humidity 61%
Wind N 7 mph
Barometer  30.11 in
Dew Point 26°F
St. Joseph IL weather  - Mostly Cloudy - 3°C
Mostly Cloudy
3°C
Updated 10:54 pm
Feels Like -1°C
Humidity 61%
Wind N 11 km/h
Barometer  102 kPa
Dew Point -3°C

St. Joseph Weather Forecast

REST OF TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
St. Joseph, IL Weather - Rest Of Tonight Chance Of Snow St. Joseph, IL Weather - Saturday Mostly Sunny St. Joseph, IL Weather - Saturday Night Mostly Clear St. Joseph, IL Weather - Sunday Sunny St. Joseph, IL Weather - Sunday Night Clear St. Joseph, IL Weather - Monday Sunny St. Joseph, IL Weather - Monday Night Clear St. Joseph, IL Weather - Tuesday Sunny St. Joseph, IL Weather - Tuesday Night Clear St. Joseph, IL Weather - Wednesday Partly Cloudy St. Joseph, IL Weather - Wednesday Night Partly Cloudy St. Joseph, IL Weather - Thursday Mostly Cloudy
Chance of Snow Mostly Sunny Mostly Clear Sunny Clear Sunny Clear Sunny Clear Partly Cloudy Partly Cloudy Mostly Cloudy
Lo: 31°FLo: -1°C Hi: 49°FHi: 9°C
Lo: 31°FLo: -1°C Hi: 49°FHi: 9°C
Lo: 35°FLo: 2°C Hi: 51°FHi: 11°C
Lo: 31°FLo: -1°C Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C Hi: 59°FHi: 15°C
Lo: 41°FLo: 5°C Hi: 60°FHi: 16°C
POP: 90%
POP = Probability of Precipitation.
Weather Outlook Updated: 901 PM CST Fri Nov 13 2026 St. Joseph, IL Weather - WeatherWorld.com

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Issued: 813 PM CST Fri Nov 13 2026

Key Messages

  • Lake effect rain showers will continue into the day Saturday before ending Saturday afternoon. Showers may mix with or briefly change to wet snow overnight with little to no accumulation expected.
  • Seasonably cool temperatures are expected through the weekend with a gradual warming trend back to above average by the middle and end of next week.

Discussion

... Issued at 123 PM CST Fri Nov 13 2026

Single band of lake effect showers stretches down the full length of Lake Michigan early this...