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As of 07:32 EDT

Weather in South Ionia, MI

60°Current weather

South Ionia, Sunday, 9 August, 07:32

Clear. Feels like 59°. High 84°, low 59°.

Pressure30.06 inHg
Wind5.7 mph S
Humidity87%
Visibility6.2 mi
Dew point56°
Mon, 1088° / 69°0.29Rain
88 °Rain

South Ionia, Monday, 10 August

Rain. High 88°, low 69°.

Pressure29.91 inHg
Wind5.2 mph W
Humidity87%
Visibility6.2 mi
Dew point70°
Tue, 1184° / 61°0.46Heavy rain
84 °Heavy rain

South Ionia, Tuesday, 11 August

Heavy rain. High 84°, low 61°.

Pressure29.85 inHg
Wind9.5 mph SE
Humidity43%
Visibility6.2 mi
Dew point58°
Wed, 1285° / 63°0Clear
85 °Clear

South Ionia, Wednesday, 12 August

Clear. High 85°, low 63°.

Pressure29.77 inHg
Wind6.3 mph NW
Humidity58%
Visibility6.2 mi
Dew point64°
Thu, 1376° / 57°0Overcast
76 °Overcast

South Ionia, Thursday, 13 August

Overcast. High 76°, low 57°.

Pressure30.00 inHg
Wind10.2 mph N
Humidity35%
Visibility—
Dew point43°
Fri, 1477° / 51°0Clear
77 °Clear

South Ionia, Friday, 14 August

Clear. High 77°, low 51°.

Pressure30.15 inHg
Wind9.7 mph NE
Humidity33%
Visibility—
Dew point42°
Sat, 1578° / 51°0Overcast
78 °Overcast

South Ionia, Saturday, 15 August

Overcast. High 78°, low 51°.

Pressure30.27 inHg
Wind7.8 mph E
Humidity35%
Visibility—
Dew point44°
Sun, 1678° / 62°0Overcast
78 °Overcast

South Ionia, Sunday, 16 August

Overcast. High 78°, low 62°.

Pressure30.09 inHg
Wind7.4 mph SW
Humidity43%
Visibility—
Dew point50°
Mon, 1785° / 62°0Partly cloudy
85 °Partly cloudy

South Ionia, Monday, 17 August

Partly cloudy. High 85°, low 62°.

Pressure30.03 inHg
Wind9.3 mph NE
Humidity34%
Visibility—
Dew point49°
Tue, 1885° / 58°0Overcast
85 °Overcast

South Ionia, Tuesday, 18 August

Overcast. High 85°, low 58°.

Pressure30.03 inHg
Wind9.4 mph SW
Humidity39%
Visibility—
Dew point53°
Wed, 1984° / 61°0.06Light rain
84 °Light rain

South Ionia, Wednesday, 19 August

Light rain. High 84°, low 61°.

Pressure29.97 inHg
Wind10.8 mph SW
Humidity49%
Visibility—
Dew point60°
Thu, 20102° / 68°0Light rain
102 °Light rain

South Ionia, Thursday, 20 August

Light rain. High 102°, low 68°.

Pressure29.77 inHg
Wind11.9 mph SW
Humidity41%
Visibility—
Dew point65°
Fri, 2197° / 70°0Clear
97 °Clear

South Ionia, Friday, 21 August

Clear. High 97°, low 70°.

Pressure29.88 inHg
Wind9.5 mph N
Humidity27%
Visibility—
Dew point52°
Sat, 2296° / 62°0.03Light rain
96 °Light rain

South Ionia, Saturday, 22 August

Light rain. High 96°, low 62°.

Pressure29.91 inHg
Wind12.5 mph S
Humidity31%
Visibility—
Dew point55°
Sun, 2398° / 65°0.07Light rain
98 °Light rain

South Ionia, Sunday, 23 August

Light rain. High 98°, low 65°.

Pressure29.80 inHg
Wind15.7 mph NE
Humidity39%
Visibility—
Dew point64°
Mon, 2473° / 65°0.01Light rain
73 °Light rain

South Ionia, Monday, 24 August

Light rain. High 73°, low 65°.

Pressure30.09 inHg
Wind11.7 mph E
Humidity78%
Visibility—
Dew point63°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for South Ionia, MI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in South Ionia, MI since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.