Troy

Sully County, Illinois, United States

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Current Weather

24°

Overcast

Feels Like: 10°

Min: 23°

Max: 35°

The next few hours will be overcast, with today reaching 35°C and dropping to 13°C. The coming days will be mostly cloudy

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Hourly Forecast

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Today
Tomorrow

Daylight Hours

06:47

Sunrise

18:59

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:35

Moonrise

21:12

Moonset

Daily Forecast

Today

23°
35°

Thursday

11°
15°

Friday

10°
18°

Saturday

18°

Sunday

18°

Monday

18°

Tuesday

17°

Wednesday

18°

Thursday

27°

Friday

17°
23°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

87% Humid
Low High

Weather in Troy today, September 16, 2026

Expect a muted, overcast feel in Troy on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Expect a grey start, with morning cloud around 100% by 07:00. Outdoor plans early on should not rely on bright skies.

The day peaks near 35°C and cools toward 23°C. Expect humidity between 42% and 90%, most humid near 07:00. Expect gentle winds, highest near 18:00 at 6.4 km/h.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 17:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.9 km, with poorer spells close to 14.1 km. Daylight runs from 06:47 to 18:59, lasting 12 hours 11 minutes of sunlight today.

Overall, Troy on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 35°C.

Frequently asked questions about weather in Troy

How warm does it get in Troy?

The warmest month in Troy is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.

How cold does it get in Troy?

The coldest month in Troy is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.

What is the wettest time of year in Troy?

The wettest month in Troy is April, with an average of 140mm of precipitation.

What is the driest time of year in Troy?

The driest month in Troy is December, with an average of 63mm of precipitation.

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Metric (°C, km/h)