As of 16:40 CDT

Weather in Thomson, IL

82°

Thomson, Sunday, 11 October, 16:40

Clear. Feels like 83°. High 82°, low 54°.

Pressure29.88 inHg

Wind10.4 mph S

Humidity47%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

Mon, 1286° / 63°

86 °

Thomson, Monday, 12 October

Clear. High 86°, low 63°.

Pressure29.80 inHg

Wind11.6 mph SW

Humidity62%

Visibility6.2 mi

Dew point64°

Tue, 1376° / 66°

76 °

Thomson, Tuesday, 13 October

Clear. High 76°, low 66°.

Pressure29.85 inHg

Wind6.5 mph NW

Humidity68%

Visibility6.2 mi

Dew point62°

Wed, 1470° / 58°

70 °

Thomson, Wednesday, 14 October

Overcast. High 70°, low 58°.

Pressure30.09 inHg

Wind8.4 mph NE

Humidity62%

Visibility6.2 mi

Dew point55°

Thu, 1560° / 57°

1.01

60 °

Thomson, Thursday, 15 October

Rain. High 60°, low 57°.

Pressure30.03 inHg

Wind9 mph E

Humidity94%

Visibility1.8 mi

Dew point57°

Fri, 1658° / 48°

58 °

Thomson, Friday, 16 October

Clear. High 58°, low 48°.

Pressure30.50 inHg

Wind18.9 mph NW

Humidity51%

Visibility—

Dew point38°

Sat, 1749° / 37°

49 °

Thomson, Saturday, 17 October

Partly cloudy. High 49°, low 37°.

Pressure30.62 inHg

Wind7.4 mph S

Humidity40%

Visibility—

Dew point24°

Sun, 1856° / 35°

56 °

Thomson, Sunday, 18 October

Clear. High 56°, low 35°.

Pressure30.39 inHg

Wind21.1 mph SW

Humidity38%

Visibility—

Dew point26°

Mon, 1962° / 41°

62 °

Thomson, Monday, 19 October

Clear. High 62°, low 41°.

Pressure30.33 inHg

Wind13.8 mph SW

Humidity40%

Visibility—

Dew point34°

Tue, 2064° / 50°

64 °

Thomson, Tuesday, 20 October

Overcast. High 64°, low 50°.

Pressure30.30 inHg

Wind10.3 mph S

Humidity46%

Visibility—

Dew point38°

Wed, 2164° / 58°

0.1

64 °

Thomson, Wednesday, 21 October

Light rain. High 64°, low 58°.

Pressure30.12 inHg

Wind16.3 mph S

Humidity69%

Visibility—

Dew point53°

Thu, 2272° / 61°

0.11

72 °

Thomson, Thursday, 22 October

Light rain. High 72°, low 61°.

Pressure30.15 inHg

Wind14.9 mph S

Humidity75%

Visibility—

Dew point58°

Fri, 2364° / 61°

0.45

64 °

Thomson, Friday, 23 October

Light rain. High 64°, low 61°.

Pressure30.00 inHg

Wind16.8 mph S

Humidity92%

Visibility—

Dew point60°

Sat, 2462° / 47°

0.13

62 °

Thomson, Saturday, 24 October

Light rain. High 62°, low 47°.

Pressure30.09 inHg

Wind14.2 mph NW

Humidity87%

Visibility—

Dew point45°

Sun, 2551° / 43°

51 °

Thomson, Sunday, 25 October

Overcast. High 51°, low 43°.

Pressure30.18 inHg

Wind11.1 mph NW

Humidity57%

Visibility—

Dew point35°

Mon, 2650° / 37°

50 °

Thomson, Monday, 26 October

Clear. High 50°, low 37°.

Pressure30.00 inHg

Wind17.2 mph NW

Humidity52%

Visibility—

Dew point32°

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.