Alan B. Janssen Airport

Perkins County, Illinois, United States

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Current Weather

27°

Mostly Cloudy

Feels Like: 34°

Min: 20°

Max: 37°

The next few hours will be clear, with tomorrow reaching 33°C and dropping to 23°C. The coming days will be partly cloudy throughout the day.

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Hourly Forecast

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Daylight Hours

06:44

Sunrise

18:59

Sunset

12 hours 14 minutes of sunlight today

Moon

Waxing Crescent

11:31

Moonrise

20:37

Moonset

Daily Forecast

Today

20°
37°

Wednesday

23°
33°

Thursday

23°
34°

Friday

21°
33°

Saturday

22°
34°

Sunday

21°
30°

Monday

19°
26°

Tuesday

16°
25°

Wednesday

16°
25°

Thursday

16°
25°

Air Quality Data Available

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Weather in Alan B. Janssen Airport tomorrow, September 16, 2026

Alan B. Janssen Airport starts September 16, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The morning sky stays heavily clouded, with cover near 100% around 00:00. Grey conditions set the early tone before any later change.

The temperature range runs from about 23°C up to 33°C. The air stays humid, with relative humidity between 52% and 96% and the peak around 07:00. Winds stay light, near 7.2 km/h by 03:00, so the day feels still more than breezy.

The afternoon keeps an overcast feel, as cloud reaches about 67% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 12.8 km, with poorer spells close to 2.4 km. Sunrise is at 06:45 and sunset at 18:57, giving 12 hours 11 minutes of sunlight today.

Taken together, settled sunshine in Alan B. Janssen Airport on September 16, 2026 makes outdoor timing easier, with highs near 33°C.

Frequently asked questions about weather in Alan B. Janssen Airport

How warm does it get in Alan B. Janssen Airport?

The warmest month in Alan B. Janssen Airport is July, with average high temperatures of 30°C. The average temperature during this period is around 25°C.

How cold does it get in Alan B. Janssen Airport?

The coldest month in Alan B. Janssen Airport is January, with average low temperatures of -4°C. The average temperature during this period is around -1°C.

What is the wettest time of year in Alan B. Janssen Airport?

The wettest month in Alan B. Janssen Airport is April, with an average of 141mm of precipitation.

What is the driest time of year in Alan B. Janssen Airport?

The driest month in Alan B. Janssen Airport is December, with an average of 60mm of precipitation.

View full climate insights for Alan B. Janssen Airport →

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