As of 05:06 CDT

Weather in Donnellson, IL

75°

Donnellson, Wednesday, 14 October, 05:06

Overcast. Feels like 76°. High 82°, low 69°.

Pressure29.94 inHg

Wind5.8 mph W

Humidity89%

Visibility6.2 mi

Dew point71°

See detailed hourly forecast

Thu, 1582° / 65°

1.91

82 °

Donnellson, Thursday, 15 October

Heavy rain. High 82°, low 65°.

Pressure29.97 inHg

Wind10.5 mph SW

Humidity92%

Visibility2.2 mi

Dew point73°

Fri, 1669° / 50°

0.22

69 °

Donnellson, Friday, 16 October

Rain. High 69°, low 50°.

Pressure30.18 inHg

Wind19.6 mph NW

Humidity45%

Visibility6.2 mi

Dew point36°

Sat, 1757° / 42°

57 °

Donnellson, Saturday, 17 October

Clear. High 57°, low 42°.

Pressure30.56 inHg

Wind5.6 mph NE

Humidity53%

Visibility6.2 mi

Dew point37°

Sun, 1861° / 41°

61 °

Donnellson, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure30.47 inHg

Wind7.2 mph S

Humidity40%

Visibility—

Dew point33°

Mon, 1966° / 43°

66 °

Donnellson, Monday, 19 October

Overcast. High 66°, low 43°.

Pressure30.39 inHg

Wind8.3 mph S

Humidity41%

Visibility—

Dew point38°

Tue, 2069° / 55°

69 °

Donnellson, Tuesday, 20 October

Overcast. High 69°, low 55°.

Pressure30.27 inHg

Wind8.7 mph W

Humidity44%

Visibility—

Dew point45°

Wed, 2171° / 52°

71 °

Donnellson, Wednesday, 21 October

Clear. High 71°, low 52°.

Pressure30.12 inHg

Wind6 mph S

Humidity52%

Visibility—

Dew point49°

Thu, 2269° / 52°

69 °

Donnellson, Thursday, 22 October

Overcast. High 69°, low 52°.

Pressure30.15 inHg

Wind11.6 mph NE

Humidity54%

Visibility—

Dew point50°

Fri, 2359° / 41°

59 °

Donnellson, Friday, 23 October

Clear. High 59°, low 41°.

Pressure30.36 inHg

Wind12.2 mph E

Humidity28%

Visibility—

Dew point22°

Sat, 2460° / 39°

60 °

Donnellson, Saturday, 24 October

Overcast. High 60°, low 39°.

Pressure30.24 inHg

Wind7 mph E

Humidity28%

Visibility—

Dew point23°

Sun, 2554° / 44°

54 °

Donnellson, Sunday, 25 October

Overcast. High 54°, low 44°.

Pressure30.06 inHg

Wind12.8 mph NW

Humidity82%

Visibility—

Dew point45°

Mon, 2657° / 34°

57 °

Donnellson, Monday, 26 October

Clear. High 57°, low 34°.

Pressure30.12 inHg

Wind7.6 mph NW

Humidity29%

Visibility—

Dew point20°

Tue, 2763° / 40°

63 °

Donnellson, Tuesday, 27 October

Clear. High 63°, low 40°.

Pressure29.97 inHg

Wind6 mph SW

Humidity38%

Visibility—

Dew point33°

Wed, 2867° / 46°

0.17

67 °

Donnellson, Wednesday, 28 October

Rain. High 67°, low 46°.

Pressure29.91 inHg

Wind8.1 mph S

Humidity36%

Visibility—

Dew point36°

Thu, 2956° / 52°

0.07

56 °

Donnellson, Thursday, 29 October

Light rain. High 56°, low 52°.

Pressure29.91 inHg

Wind9.4 mph E

Humidity78%

Visibility—

Dew point48°

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.