As of 22:28 CDT

Weather in Thomson, IL

52°

Thomson, Thursday, 8 October, 22:28

Overcast. Feels like 51°. High 74°, low 49°.

Pressure30.09 inHg

Wind4.6 mph N

Humidity87%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Fri, 0975° / 53°

0.05

75 °

Thomson, Friday, 9 October

Light rain. High 75°, low 53°.

Pressure30.06 inHg

Wind8.9 mph SE

Humidity70%

Visibility6.2 mi

Dew point55°

Sat, 1080° / 59°

80 °

Thomson, Saturday, 10 October

Overcast. High 80°, low 59°.

Pressure30.03 inHg

Wind9.2 mph S

Humidity58%

Visibility6.2 mi

Dew point57°

Sun, 1174° / 56°

74 °

Thomson, Sunday, 11 October

Clear. High 74°, low 56°.

Pressure29.94 inHg

Wind4.3 mph S

Humidity67%

Visibility6.2 mi

Dew point57°

Mon, 1281° / 61°

81 °

Thomson, Monday, 12 October

Overcast. High 81°, low 61°.

Pressure29.80 inHg

Wind10.1 mph SW

Humidity60%

Visibility6.2 mi

Dew point62°

Tue, 1372° / 64°

72 °

Thomson, Tuesday, 13 October

Overcast. High 72°, low 64°.

Pressure29.88 inHg

Wind10.8 mph NW

Humidity78%

Visibility—

Dew point61°

Wed, 1466° / 57°

0.08

66 °

Thomson, Wednesday, 14 October

Light rain. High 66°, low 57°.

Pressure30.09 inHg

Wind10.5 mph E

Humidity62%

Visibility—

Dew point50°

Thu, 1579° / 54°

2.18

79 °

Thomson, Thursday, 15 October

Heavy rain. High 79°, low 54°.

Pressure29.71 inHg

Wind18.1 mph SW

Humidity75%

Visibility—

Dew point68°

Fri, 1660° / 48°

60 °

Thomson, Friday, 16 October

Overcast. High 60°, low 48°.

Pressure30.18 inHg

Wind14.6 mph NW

Humidity63%

Visibility—

Dew point42°

Sat, 1750° / 38°

50 °

Thomson, Saturday, 17 October

Clear. High 50°, low 38°.

Pressure30.53 inHg

Wind14 mph N

Humidity51%

Visibility—

Dew point30°

Sun, 1852° / 36°

52 °

Thomson, Sunday, 18 October

Overcast. High 52°, low 36°.

Pressure30.50 inHg

Wind6.6 mph S

Humidity49%

Visibility—

Dew point30°

Mon, 1957° / 39°

57 °

Thomson, Monday, 19 October

Partly cloudy. High 57°, low 39°.

Pressure30.50 inHg

Wind6.8 mph E

Humidity48%

Visibility—

Dew point34°

Tue, 2052° / 45°

52 °

Thomson, Tuesday, 20 October

Overcast. High 52°, low 45°.

Pressure30.30 inHg

Wind8.9 mph S

Humidity66%

Visibility—

Dew point40°

Wed, 2165° / 45°

65 °

Thomson, Wednesday, 21 October

Clear. High 65°, low 45°.

Pressure30.15 inHg

Wind11.9 mph SW

Humidity69%

Visibility—

Dew point49°

Thu, 2262° / 47°

62 °

Thomson, Thursday, 22 October

Clear. High 62°, low 47°.

Pressure30.21 inHg

Wind9.4 mph N

Humidity58%

Visibility—

Dew point45°

Fri, 2357° / 42°

0.01

57 °

Thomson, Friday, 23 October

Light rain. High 57°, low 42°.

Pressure30.33 inHg

Wind7 mph S

Humidity60%

Visibility—

Dew point41°

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.