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Saint Thomas, Indiana Weather Forecast
Saint Thomas, Indiana Weather
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Weather Forecast for Saint Thomas, Indiana : Knox County
Issued: 7:45 pm EST Dec 18, 2025 Latitude: 38.5861583 Longitude: -87.562245 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
70% chance of rain & snow on Tonight Mostly Cloudy on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of rain on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Christmas Day
Low: 24°F High: 35°F High: 51°F High: 40°F High: 47°F High: 57°F High: 62°F High: 65°F
Low: 28°F Low: 27°F Low: 24°F Low: 39°F Low: 48°F Low: 55°F  
Rain & Snow Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny Rain Mostly Cloudy Mostly Cloudy
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Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
45°
Feels like 39°F
Cloudy
as of 6:35 PM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.59 in.
Flight Rule: VFR
Wind Data
9 MPH
270° West
Cloud Level(s): Broken at 6000ft, Solid Overcast at 7000ft
Current Conditions at
LAWRENCEVILLE - (KLWV)
45°
Feels like 38°F
Cloudy
Light Rain
as of 5:53 PM CST
Rel. Humidity: 87%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.58 in.
Flight Rule: VFR
Wind Data
13 MPH
290° West
Cloud Level(s): Solid Overcast at 4600ft
Current Conditions at
ROBINSON - (KRSV)
43°
Feels like 37°F
Cloudy
as of 6:35 PM CST
Rel. Humidity: 93%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.57 in.
Flight Rule: VFR
Wind Data
9 MPH
270° West
Cloud Level(s): Scattered at 4800ft, Broken at 6500ft, Solid Overcast at 7500ft
Current Conditions at
OLNEY-NOBLE AIRPORT - (KOLY)
43°
Mostly Cloudy
as of 6:30 PM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.60 in.
Flight Rule: VFR
Wind Data
3 MPH
110° East
Cloud Level(s): Broken at 11000ft
70% chance of rain & snow Tonight Tonight... Rain likely before 1am, then a chance of snow. Mostly cloudy, with a low around 24. Blustery, with a west wind 7 to 12 mph increasing to 17 to 22 mph in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.

Mostly Cloudy on Friday Friday... Mostly cloudy, then gradually becoming sunny, with a high near 35. Breezy, with a west northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 31 mph.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 28. South wind 5 to 11 mph, with gusts as high as 18 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 51. South wind 11 to 17 mph, with gusts as high as 24 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 27. West southwest wind around 7 mph becoming north northwest after midnight.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 40. Northwest wind around 6 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 24. Light and variable wind.

Partly Sunny on Monday Monday... Partly sunny, with a high near 47. South southeast wind 6 to 8 mph.

30% chance of rain Monday Night Monday Night... A 30 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 39. South southwest wind 7 to 10 mph.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 57. South southwest wind 9 to 11 mph.

20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 48.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 62.

20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 55.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 65.

Current Radar Image


Sun Almanac for Saint Thomas, Indiana
Sunrise: 08:03 AM
Sunset: 5:31 PM
Civil Sunrise:07:33 AM
Civil Sunset: 6:01 PM
Nautical Sunrise: 07:00 AM
Nautical Sunset: 6:34 PM
Astro Sunrise: 06:27 AM
Astro Sunset: 7:07 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.