What is today's weather forecast for Troy, IL?

Today's forecast for Troy shows a low of 35 degrees Fahrenheit. A 20 percent chance of rain before 9pm.

What is the 7-day weather forecast for Troy, IL?

The 7-day forecast for Troy shows highs from 31 to 44 degrees and lows from 18 to 35 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Troy, IL this week?

Yes, rain is possible in Troy this week. Precipitation chances: Tuesday (20% chance), Friday (50% chance), Saturday (80% chance), Sunday (20% chance), Monday (20% chance).

How accurate is the Troy weather forecast?

WeatherForYou provides highly accurate Troy forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Troy, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

54°F
Feels Like 54°F

Humidity 95% Dew Point 52°F Wind SSE 1 MPH Gusts 1 Barometer 29.81 in.

Report from a personal weather station 3.8 mi. NW of central Troy
at 7:19 PM Tue, Nov 25, 2025

Point Forecast at a Glance

TueNov 25

20%

WedNov 26

ThuNov 27

FriNov 28

SatNov 29

80%

SunNov 30

20%

MonDec 1

20%

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 44°F to 31°F. Unsettled weather expected with wintry mix likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 13°F below the historical average for November-December. Normal highs for this period are around 50°F with lows around 32°F.

This Date in Weather History

1987 - An early morning thunderstorm in southeastern Texas produced high winds which rolled a mobile home east of Bay City killing two of the four occupants. Thunderstorms produced locally heavy rains in central and eastern Texas, with nine inches reported at Huntsville, and 8.5 inches at Wimberly. Snow fell across northern and central Lower Michigan, with totals ranging up to nine inches at Cadillac.

Troy, IL 7 Day Weather Forecast Details

Tuesday Nov 25

Night: A 20 percent chance of rain before 9pm. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 35. Breezy, with a west wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 34 mph.

Wednesday Nov 26

Day: Mostly cloudy, then gradually becoming sunny, with a high near 44. Breezy, with a west wind 16 to 23 mph, with gusts as high as 36 mph.

Night: Increasing clouds, with a low around 26. West wind 9 to 14 mph, with gusts as high as 23 mph.

Thursday Nov 27

Day: Sunny, with a high near 42. Northwest wind 8 to 13 mph.

Night: Mostly clear, with a low around 22. Northwest wind 5 to 7 mph becoming calm after midnight.

Friday Nov 28

Day: Mostly sunny, with a high near 38.

Night: A 50 percent chance of snow after midnight. Cloudy, with a low around 29.

Saturday Nov 29

Day: Rain and snow. High near 39. Chance of precipitation is 80%.

Night: Rain likely, mainly before midnight. Cloudy, with a low around 28. Chance of precipitation is 70%.

Sunday Nov 30

Day: A 20 percent chance of rain. Mostly cloudy, with a high near 35.

Night: A slight chance of rain and snow. Mostly cloudy, with a low around 18. Chance of precipitation is 20%.

Monday Dec 1

Day: A slight chance of rain and snow. Mostly cloudy, with a high near 31. Chance of precipitation is 20%.

Night: A 20 percent chance of snow. Mostly cloudy, with a low around 19.

Tuesday Dec 2

Day: Partly sunny, with a high near 32.

About Troy, IL

Troy is a city in Madison County, Illinois, United States. The population was 10,960 at the 2020 census, up from 9,888 in 2010. Troy is part of the St. Louis Metropolitan Statistical Area. Its namesake in Lincoln County, Missouri, is also part of this MSA, making it (along with the two O'Fallons in Illinois and Missouri) one of the few pairs of like-named municipalities to be part of the same MSA.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

Your favorites: