As of 12:04 CDT

Weather in Thomson, IL

79°

Thomson, Saturday, 10 October, 12:04

Clear. Feels like 79°. High 79°, low 59°.

Pressure30.03 inHg

Wind9.2 mph SW

Humidity47%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Sun, 1177° / 54°

77 °

Thomson, Sunday, 11 October

Clear. High 77°, low 54°.

Pressure29.97 inHg

Wind7.5 mph S

Humidity62%

Visibility6.2 mi

Dew point57°

Mon, 1281° / 58°

81 °

Thomson, Monday, 12 October

Clear. High 81°, low 58°.

Pressure29.80 inHg

Wind11 mph SW

Humidity63%

Visibility6.2 mi

Dew point64°

Tue, 1373° / 61°

73 °

Thomson, Tuesday, 13 October

Clear. High 73°, low 61°.

Pressure29.85 inHg

Wind9 mph NW

Humidity68%

Visibility6.2 mi

Dew point61°

Wed, 1467° / 56°

0.14

67 °

Thomson, Wednesday, 14 October

Light rain. High 67°, low 56°.

Pressure30.15 inHg

Wind8.1 mph NE

Humidity63%

Visibility6.2 mi

Dew point52°

Thu, 1562° / 53°

62 °

Thomson, Thursday, 15 October

Overcast. High 62°, low 53°.

Pressure30.30 inHg

Wind11.9 mph E

Humidity62%

Visibility—

Dew point47°

Fri, 1657° / 38°

0.03

57 °

Thomson, Friday, 16 October

Light rain. High 57°, low 38°.

Pressure29.85 inHg

Wind26.1 mph W

Humidity54%

Visibility—

Dew point34°

Sat, 1741° / 31°

41 °

Thomson, Saturday, 17 October

Overcast. High 41°, low 31°.

Pressure30.36 inHg

Wind22.8 mph NW

Humidity49%

Visibility—

Dew point22°

Sun, 1846° / 26°

46 °

Thomson, Sunday, 18 October

Mostly clear. High 46°, low 26°.

Pressure30.50 inHg

Wind9 mph S

Humidity39%

Visibility—

Dew point18°

Mon, 1958° / 37°

58 °

Thomson, Monday, 19 October

Partly cloudy. High 58°, low 37°.

Pressure30.30 inHg

Wind15.9 mph S

Humidity40%

Visibility—

Dew point29°

Tue, 2061° / 42°

61 °

Thomson, Tuesday, 20 October

Overcast. High 61°, low 42°.

Pressure30.21 inHg

Wind14.9 mph S

Humidity46%

Visibility—

Dew point34°

Wed, 2155° / 49°

0.27

55 °

Thomson, Wednesday, 21 October

Rain. High 55°, low 49°.

Pressure29.91 inHg

Wind16.4 mph S

Humidity93%

Visibility—

Dew point48°

Thu, 2265° / 42°

65 °

Thomson, Thursday, 22 October

Clear. High 65°, low 42°.

Pressure30.06 inHg

Wind16.9 mph SW

Humidity47%

Visibility—

Dew point39°

Fri, 2356° / 40°

56 °

Thomson, Friday, 23 October

Clear. High 56°, low 40°.

Pressure30.21 inHg

Wind10.1 mph NW

Humidity45%

Visibility—

Dew point31°

Sat, 2456° / 42°

56 °

Thomson, Saturday, 24 October

Overcast. High 56°, low 42°.

Pressure30.18 inHg

Wind9.8 mph E

Humidity40%

Visibility—

Dew point30°

Sun, 2553° / 37°

0.31

53 °

Thomson, Sunday, 25 October

Snow. High 53°, low 37°.

Pressure29.83 inHg

Wind18.5 mph NW

Humidity74%

Visibility—

Dew point44°

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 Thomson, 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 Thomson, 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.