As of 18:12 CDT

Weather in Gilson, IL

83°

Gilson, Monday, 12 October, 18:12

Clear. Feels like 86°. High 87°, low 64°.

Pressure29.77 inHg

Wind11.3 mph SW

Humidity62%

Visibility6.2 mi

Dew point68°

See detailed hourly forecast

Tue, 1384° / 65°

0.06

84 °

Gilson, Tuesday, 13 October

Light rain. High 84°, low 65°.

Pressure29.88 inHg

Wind4.1 mph W

Humidity64%

Visibility6.2 mi

Dew point64°

Wed, 1474° / 62°

0.08

74 °

Gilson, Wednesday, 14 October

Rain. High 74°, low 62°.

Pressure30.06 inHg

Wind6.9 mph NE

Humidity68%

Visibility6.2 mi

Dew point60°

Thu, 1565° / 58°

1.28

65 °

Gilson, Thursday, 15 October

Heavy rain. High 65°, low 58°.

Pressure30.00 inHg

Wind7.3 mph E

Humidity96%

Visibility1.2 mi

Dew point62°

Fri, 1657° / 47°

0.01

57 °

Gilson, Friday, 16 October

Light rain. High 57°, low 47°.

Pressure30.36 inHg

Wind18.5 mph NW

Humidity52%

Visibility6.2 mi

Dew point37°

Sat, 1759° / 39°

59 °

Gilson, Saturday, 17 October

Clear. High 59°, low 39°.

Pressure30.47 inHg

Wind9.2 mph SW

Humidity42%

Visibility—

Dew point32°

Sun, 1863° / 43°

63 °

Gilson, Sunday, 18 October

Clear. High 63°, low 43°.

Pressure30.27 inHg

Wind13.7 mph S

Humidity42%

Visibility—

Dew point35°

Mon, 1966° / 45°

0.02

66 °

Gilson, Monday, 19 October

Light rain. High 66°, low 45°.

Pressure30.30 inHg

Wind8.8 mph S

Humidity48%

Visibility—

Dew point42°

Tue, 2069° / 55°

69 °

Gilson, Tuesday, 20 October

Partly cloudy. High 69°, low 55°.

Pressure30.24 inHg

Wind8 mph SE

Humidity68%

Visibility—

Dew point56°

Wed, 2175° / 57°

75 °

Gilson, Wednesday, 21 October

Clear. High 75°, low 57°.

Pressure30.18 inHg

Wind11.9 mph S

Humidity58%

Visibility—

Dew point56°

Thu, 2274° / 62°

74 °

Gilson, Thursday, 22 October

Overcast. High 74°, low 62°.

Pressure30.06 inHg

Wind12.9 mph S

Humidity64%

Visibility—

Dew point55°

Fri, 2374° / 67°

0.01

74 °

Gilson, Friday, 23 October

Light rain. High 74°, low 67°.

Pressure29.88 inHg

Wind17.7 mph S

Humidity54%

Visibility—

Dew point53°

Sat, 2467° / 47°

0.05

67 °

Gilson, Saturday, 24 October

Light rain. High 67°, low 47°.

Pressure29.83 inHg

Wind18.3 mph W

Humidity61%

Visibility—

Dew point40°

Sun, 2554° / 45°

54 °

Gilson, Sunday, 25 October

Overcast. High 54°, low 45°.

Pressure30.09 inHg

Wind13.3 mph NW

Humidity56%

Visibility—

Dew point36°

Mon, 2659° / 41°

59 °

Gilson, Monday, 26 October

Clear. High 59°, low 41°.

Pressure30.18 inHg

Wind6.6 mph E

Humidity53%

Visibility—

Dew point38°

Tue, 2765° / 46°

65 °

Gilson, Tuesday, 27 October

Overcast. High 65°, low 46°.

Pressure29.94 inHg

Wind8.4 mph S

Humidity50%

Visibility—

Dew point40°

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 Gilson, 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 Gilson, 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.