Ionia

Thurston County, Michigan, United States

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Current Weather

22°

Overcast

Feels Like: 12°

Min: 15°

Max: 25°

The next few hours will be overcast, with today reaching 25°C and dropping to 11°C. The coming days will be drizzle

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Hourly Forecast

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10pm
11pm
12am
1am
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Today
Tomorrow

Daylight Hours

07:26

Sunrise

19:43

Sunset

12 hours 16 minutes of sunlight today

Moon

Waxing Crescent

12:25

Moonrise

21:09

Moonset

Daily Forecast

Today

15°
25°

Wednesday

11°
26°

Thursday

14°
24°

Friday

12°
22°

Saturday

21°

Sunday

24°

Monday

25°

Tuesday

24°

Wednesday

20°

Thursday

15°
20°

Air Quality Data Available

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UV Index

No protection needed
2 Low
Low Extreme

Humidity

62% Comfortable
Low High

Weather in Ionia today, September 15, 2026

Expect a muted, overcast feel in Ionia on September 15, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Cloud leads the morning, peaking close to 100% near 11:00. Sunshine has little room until later in the day.

Expect highs of 25°C and cooler readings close to 15°C. Moisture in the air spans 60%-96%, with the highest values around 22:00. Airflow remains manageable, reaching about 5.7 km/h around 16:00.

Afternoon skies stay clogged, peaking close to 100% near 12:00. The grey theme continues rather than clearing out. Visibility holds near 14.9 km, though it can fall to 8.7 km. Sunrise is at 07:26 and sunset at 19:43, giving 12 hours 16 minutes of sunlight today.

Overall, Ionia on September 15, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 25°C.

Frequently asked questions about weather in Ionia

How warm does it get in Ionia?

The warmest month in Ionia is July, with average high temperatures of 29°C. The average temperature during this period is around 23°C.

How cold does it get in Ionia?

The coldest month in Ionia is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.

What is the wettest time of year in Ionia?

The wettest month in Ionia is October, with an average of 102mm of precipitation.

What is the driest time of year in Ionia?

The driest month in Ionia is November, with an average of 56mm of precipitation.

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Metric (°C, km/h)