As of 18:27 CDT

Weather in Gillespie, IL

75°

Gillespie, Thursday, 15 October, 18:27

Partly cloudy. Feels like 76°. High 76°, low 66°.

Pressure29.88 inHg

Wind12.7 mph SW

Humidity78%

Visibility6.2 mi

Dew point68°

See detailed hourly forecast

Fri, 1661° / 51°

0.03

61 °

Gillespie, Friday, 16 October

Light rain. High 61°, low 51°.

Pressure30.21 inHg

Wind17.6 mph NW

Humidity49%

Visibility6.2 mi

Dew point37°

Sat, 1757° / 42°

57 °

Gillespie, Saturday, 17 October

Clear. High 57°, low 42°.

Pressure30.59 inHg

Wind2.8 mph NE

Humidity46%

Visibility6.2 mi

Dew point33°

Sun, 1863° / 42°

63 °

Gillespie, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.50 inHg

Wind8.1 mph S

Humidity37%

Visibility6.2 mi

Dew point32°

Mon, 1967° / 43°

67 °

Gillespie, Monday, 19 October

Mostly clear. High 67°, low 43°.

Pressure30.39 inHg

Wind4.7 mph S

Humidity45%

Visibility6.2 mi

Dew point41°

Tue, 2070° / 45°

70 °

Gillespie, Tuesday, 20 October

Overcast. High 70°, low 45°.

Pressure30.33 inHg

Wind4.7 mph SE

Humidity37%

Visibility—

Dew point38°

Wed, 2172° / 50°

72 °

Gillespie, Wednesday, 21 October

Clear. High 72°, low 50°.

Pressure30.30 inHg

Wind6.5 mph SE

Humidity36%

Visibility—

Dew point40°

Thu, 2275° / 53°

75 °

Gillespie, Thursday, 22 October

Clear. High 75°, low 53°.

Pressure30.24 inHg

Wind7.7 mph S

Humidity29%

Visibility—

Dew point37°

Fri, 2377° / 60°

77 °

Gillespie, Friday, 23 October

Overcast. High 77°, low 60°.

Pressure30.18 inHg

Wind12.7 mph SE

Humidity30%

Visibility—

Dew point40°

Sat, 2473° / 62°

73 °

Gillespie, Saturday, 24 October

Partly cloudy. High 73°, low 62°.

Pressure30.18 inHg

Wind10.8 mph SW

Humidity38%

Visibility—

Dew point44°

Sun, 2577° / 57°

77 °

Gillespie, Sunday, 25 October

Mostly clear. High 77°, low 57°.

Pressure30.36 inHg

Wind9.2 mph NE

Humidity41%

Visibility—

Dew point48°

Mon, 2677° / 57°

77 °

Gillespie, Monday, 26 October

Partly cloudy. High 77°, low 57°.

Pressure30.39 inHg

Wind10 mph SE

Humidity39%

Visibility—

Dew point46°

Tue, 2773° / 57°

73 °

Gillespie, Tuesday, 27 October

Overcast. High 73°, low 57°.

Pressure30.24 inHg

Wind11.9 mph S

Humidity36%

Visibility—

Dew point42°

Wed, 2878° / 61°

78 °

Gillespie, Wednesday, 28 October

Overcast. High 78°, low 61°.

Pressure30.24 inHg

Wind12.8 mph S

Humidity34%

Visibility—

Dew point44°

Thu, 2980° / 56°

0.06

80 °

Gillespie, Thursday, 29 October

Light rain. High 80°, low 56°.

Pressure30.06 inHg

Wind14.7 mph SW

Humidity38%

Visibility—

Dew point47°

Fri, 3064° / 49°

0.98

64 °

Gillespie, Friday, 30 October

Heavy rain. High 64°, low 49°.

Pressure30.27 inHg

Wind14.8 mph N

Humidity88%

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 Gillespie, 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 Gillespie, 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.