As of 03:00 CDT

Weather in Gallagher, IL

54°

Gallagher, Thursday, 8 October, 03:00

Clear. Feels like 54°. High 83°, low 53°.

Pressure30.00 inHg

Wind0 mph N

Humidity91%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

Fri, 0985° / 50°

85 °

Gallagher, Friday, 9 October

Clear. High 85°, low 50°.

Pressure30.15 inHg

Wind8.1 mph S

Humidity32%

Visibility6.2 mi

Dew point48°

Sat, 1081° / 59°

81 °

Gallagher, Saturday, 10 October

Overcast. High 81°, low 59°.

Pressure30.15 inHg

Wind5.5 mph E

Humidity46%

Visibility6.2 mi

Dew point57°

Sun, 1170° / 62°

0.2

70 °

Gallagher, Sunday, 11 October

Light rain. High 70°, low 62°.

Pressure29.88 inHg

Wind6.1 mph NE

Humidity78%

Visibility6.2 mi

Dew point60°

Mon, 1286° / 59°

86 °

Gallagher, Monday, 12 October

Clear. High 86°, low 59°.

Pressure29.91 inHg

Wind11.6 mph SW

Humidity43%

Visibility—

Dew point55°

Tue, 1374° / 59°

0.01

74 °

Gallagher, Tuesday, 13 October

Light rain. High 74°, low 59°.

Pressure29.97 inHg

Wind14.9 mph N

Humidity52%

Visibility—

Dew point54°

Wed, 1466° / 47°

66 °

Gallagher, Wednesday, 14 October

Partly cloudy. High 66°, low 47°.

Pressure30.06 inHg

Wind9.9 mph SE

Humidity37%

Visibility—

Dew point37°

Thu, 1593° / 63°

93 °

Gallagher, Thursday, 15 October

Clear. High 93°, low 63°.

Pressure29.91 inHg

Wind18.4 mph SW

Humidity41%

Visibility—

Dew point61°

Fri, 1689° / 71°

0.02

89 °

Gallagher, Friday, 16 October

Light rain. High 89°, low 71°.

Pressure30.00 inHg

Wind20.7 mph SW

Humidity44%

Visibility—

Dew point62°

Sat, 1762° / 52°

0.04

62 °

Gallagher, Saturday, 17 October

Light rain. High 62°, low 52°.

Pressure30.21 inHg

Wind14.7 mph NW

Humidity44%

Visibility—

Dew point35°

Sun, 1862° / 43°

62 °

Gallagher, Sunday, 18 October

Clear. High 62°, low 43°.

Pressure30.27 inHg

Wind9.4 mph NW

Humidity39%

Visibility—

Dew point33°

Mon, 1966° / 42°

66 °

Gallagher, Monday, 19 October

Clear. High 66°, low 42°.

Pressure30.27 inHg

Wind6.6 mph N

Humidity31%

Visibility—

Dew point29°

Tue, 2073° / 46°

73 °

Gallagher, Tuesday, 20 October

Overcast. High 73°, low 46°.

Pressure30.15 inHg

Wind7.9 mph N

Humidity27%

Visibility—

Dew point31°

Wed, 2165° / 46°

65 °

Gallagher, Wednesday, 21 October

Overcast. High 65°, low 46°.

Pressure30.18 inHg

Wind11.9 mph NE

Humidity29%

Visibility—

Dew point28°

Thu, 2260° / 50°

0.17

60 °

Gallagher, Thursday, 22 October

Light rain. High 60°, low 50°.

Pressure29.83 inHg

Wind12.1 mph S

Humidity86%

Visibility—

Dew point50°

Fri, 2360° / 54°

0.02

60 °

Gallagher, Friday, 23 October

Light rain. High 60°, low 54°.

Pressure29.77 inHg

Wind13.1 mph SW

Humidity92%

Visibility—

Dew point52°

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 Gallagher, 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 Gallagher, 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.