Saint Johns, Illinois Weather
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Weather Forecast for Saint Johns, Illinois : Perry County
Issued: 1:19 am CST Feb 5, 2025 Latitude: 38.0308837 Longitude: -89.2409157 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of rain on Overnight 70% chance of rain on Wednesday 30% chance of rain on Thursday 20% chance of rain on Friday 70% chance of thunderstorms on Saturday Partly Sunny on Sunday 10% chance of snow on Monday 20% chance of snow on Tuesday
Low: 36°F High: 45°F High: 57°F High: 45°F High: 63°F High: 40°F High: 41°F High: 37°F
Low: 44 °F Low: 32°F Low: 37°F Low: 29°F Low: 27°F Low: 28°F  
Rain Rain Rain Rain Thunderstorms Partly Sunny Snow Snow
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Current Conditions at
CARBONDALE - (KMDH)
41°
Cloudy
as of 12:52 AM CST
Rel. Humidity: 65%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
6 MPH
030° Northeast
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
MARION - (KMWA)
39°
Cloudy
as of 1:15 AM CST
Rel. Humidity: 69%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
5 MPH
020° North
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
SPARTA - (KSAR)
37°
Feels like 30°F
Cloudy
as of 1:15 AM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: MVFR
Wind Data
9 MPH
040° Northeast
Cloud Level(s): Solid Overcast at 3000ft
Current Conditions at
CAIRO - (KCIR)
45°
Cloudy
as of 1:15 AM CST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: MVFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 1900ft
20% chance of rain Overnight Overnight... A slight chance of drizzle between 3am and 5am, then a slight chance of rain after 5am. Cloudy, with a low around 36. Northeast wind around 6 mph. Chance of precipitation is 20%.
70% chance of rain Wednesday Wednesday... Rain likely, mainly after 11am. Patchy fog after 2pm. Otherwise, cloudy, with a high near 45. East wind around 7 mph. Chance of precipitation is 70%.
70% chance of thunderstorms Wednesday Night Wednesday Night... Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Patchy fog before 1am. Otherwise, cloudy, with a temperature falling to near 44 by 8pm, then rising to around 56 during the remainder of the night. East southeast wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
30% chance of rain Thursday Thursday... A 30 percent chance of rain. Partly sunny, with a high near 57. West wind 6 to 10 mph becoming north northwest in the afternoon.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 32. North northwest wind 3 to 6 mph.
20% chance of rain Friday Friday... A 20 percent chance of rain after noon. Partly sunny, with a high near 45. Northeast wind 5 to 7 mph.
70% chance of rain Friday Night Friday Night... Rain likely, mainly after midnight. Cloudy, with a low around 37. East wind 6 to 8 mph. Chance of precipitation is 70%.
70% chance of thunderstorms Saturday Saturday... Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. East wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
20% chance of rain Saturday Night Saturday Night... A chance of rain before midnight. Mostly cloudy, with a low around 29. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 40. North wind 7 to 10 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 27. North wind around 6 mph.
10% chance of snow Monday Monday... A slight chance of snow. Mostly cloudy, with a high near 41. Northeast wind 6 to 8 mph.
Snow on Monday Night Monday Night... Snow likely. Cloudy, with a low around 28. Northeast wind 6 to 9 mph.
20% chance of snow Tuesday Tuesday... A chance of snow. Mostly cloudy, with a high near 37. North northeast wind around 10 mph, with gusts as high as 18 mph.
Current Radar Image


Sun Almanac for Saint Johns, Illinois
Sunrise: 06:57 AM
Sunset: 5:25 PM
Civil Sunrise:06:30 AM
Civil Sunset: 5:52 PM
Nautical Sunrise: 05:58 AM
Nautical Sunset: 6:23 PM
Astro Sunrise: 05:28 AM
Astro Sunset: 6:54 PM
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