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As of 18:37 CDT

Weather in Donnellson, IL

77°Current weather

Donnellson, Thursday, 15 October, 18:37

Clear. Feels like 78°. High 78°, low 67°.

Pressure29.88 inHg
Wind10.6 mph SW
Humidity93%
Visibility6.2 mi
Dew point75°
Fri, 1664° / 51°0.03Light rain
64 °Light rain

Donnellson, Friday, 16 October

Light rain. High 64°, low 51°.

Pressure30.18 inHg
Wind17.5 mph NW
Humidity47%
Visibility6.2 mi
Dew point37°
Sat, 1757° / 42°0Clear
57 °Clear

Donnellson, Saturday, 17 October

Clear. High 57°, low 42°.

Pressure30.56 inHg
Wind3.4 mph NE
Humidity51%
Visibility6.2 mi
Dew point36°
Sun, 1861° / 41°0Clear
61 °Clear

Donnellson, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure30.50 inHg
Wind8 mph S
Humidity38%
Visibility6.2 mi
Dew point33°
Mon, 1967° / 42°0Clear
67 °Clear

Donnellson, Monday, 19 October

Clear. High 67°, low 42°.

Pressure30.39 inHg
Wind4.6 mph S
Humidity47%
Visibility6.2 mi
Dew point42°
Tue, 2069° / 45°0Overcast
69 °Overcast

Donnellson, Tuesday, 20 October

Overcast. High 69°, low 45°.

Pressure30.33 inHg
Wind3.7 mph SE
Humidity39%
Visibility—
Dew point39°
Wed, 2172° / 48°0Clear
72 °Clear

Donnellson, Wednesday, 21 October

Clear. High 72°, low 48°.

Pressure30.30 inHg
Wind6.2 mph SE
Humidity37%
Visibility—
Dew point40°
Thu, 2275° / 53°0Clear
75 °Clear

Donnellson, Thursday, 22 October

Clear. High 75°, low 53°.

Pressure30.24 inHg
Wind7.3 mph SE
Humidity30%
Visibility—
Dew point37°
Fri, 2377° / 57°0Overcast
77 °Overcast

Donnellson, Friday, 23 October

Overcast. High 77°, low 57°.

Pressure30.18 inHg
Wind11.8 mph SE
Humidity30%
Visibility—
Dew point40°
Sat, 2477° / 61°0Partly cloudy
77 °Partly cloudy

Donnellson, Saturday, 24 October

Partly cloudy. High 77°, low 61°.

Pressure30.18 inHg
Wind11.7 mph S
Humidity32%
Visibility—
Dew point43°
Sun, 2578° / 58°0Partly cloudy
78 °Partly cloudy

Donnellson, Sunday, 25 October

Partly cloudy. High 78°, low 58°.

Pressure30.36 inHg
Wind8.8 mph NE
Humidity38%
Visibility—
Dew point47°
Mon, 2678° / 56°0Partly cloudy
78 °Partly cloudy

Donnellson, Monday, 26 October

Partly cloudy. High 78°, low 56°.

Pressure30.39 inHg
Wind10.1 mph SE
Humidity38%
Visibility—
Dew point46°
Tue, 2773° / 57°0Overcast
73 °Overcast

Donnellson, Tuesday, 27 October

Overcast. High 73°, low 57°.

Pressure30.27 inHg
Wind11.7 mph S
Humidity34%
Visibility—
Dew point41°
Wed, 2878° / 59°0Overcast
78 °Overcast

Donnellson, Wednesday, 28 October

Overcast. High 78°, low 59°.

Pressure30.27 inHg
Wind11.6 mph S
Humidity33%
Visibility—
Dew point43°
Thu, 2979° / 54°0.01Light rain
79 °Light rain

Donnellson, Thursday, 29 October

Light rain. High 79°, low 54°.

Pressure30.09 inHg
Wind14.8 mph SW
Humidity38%
Visibility—
Dew point47°
Fri, 3066° / 51°0.79Rain
66 °Rain

Donnellson, Friday, 30 October

Rain. High 66°, low 51°.

Pressure30.27 inHg
Wind14.9 mph NE
Humidity87%
Visibility—
Dew point51°

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 Donnellson, IL 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 Donnellson, IL 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.