Anna

Sherman County, Illinois, United States

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Current Weather

34°

Clear

Feels Like: 17°

Min: 24°

Max: 36°

The next few hours will be clear, with tomorrow reaching 33°C and dropping to 13°C. The coming days will be drizzle

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Hourly Forecast

35° 33° 31° 29° 28° 27° 27° 27° 26° 26° 25° 25° 25° 24° 27° 31° 33° 16° 17° 17° 19° 19° 18° 17°
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Today
Tomorrow

Daylight Hours

06:45

Sunrise

18:56

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:28

Moonrise

21:13

Moonset

Daily Forecast

Today

24°
36°

Thursday

13°
33°

Friday

13°
21°

Saturday

10°
22°

Sunday

22°

Monday

22°

Tuesday

21°

Wednesday

20°

Thursday

22°

Friday

17°
21°

Air Quality Data Available

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UV Index

No protection needed
1 Low
Low Extreme

Humidity

32% Dry
Low High

Weather in Anna tomorrow, September 17, 2026

Cloud cover dominates in Anna on September 17, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 94% by 11:00. Outdoor plans early on should not rely on bright skies.

Temperatures climb from an overnight low near 13°C toward a daytime high of about 33°C. Expect humidity between 38% and 96%, most humid near 11:00. Airflow remains manageable, reaching about 3.4 km/h around 10:00.

The afternoon keeps an overcast feel, as cloud reaches about 91% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 13.7 km, with poorer spells close to 7.9 km. Expect sunrise at 06:46, sunset at 18:55, and 12 hours 8 minutes of sunlight today overall.

Overall, Anna on September 17, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 33°C.

Frequently asked questions about weather in Anna

How warm does it get in Anna?

The warmest month in Anna is July, with average high temperatures of 31°C. The average temperature during this period is around 27°C.

How cold does it get in Anna?

The coldest month in Anna is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.

What is the wettest time of year in Anna?

The wettest month in Anna is March, with an average of 145mm of precipitation.

What is the driest time of year in Anna?

The driest month in Anna is September, with an average of 71mm of precipitation.

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Metric (°C, km/h)