As of 03:59 CDT

Weather in Latham, IL

53°

Latham, Friday, 16 October, 03:59

Overcast. Feels like 52°. High 58°, low 51°.

Pressure30.06 inHg

Wind14.5 mph NW

Humidity88%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Sat, 1761° / 40°

61 °

Latham, Saturday, 17 October

Clear. High 61°, low 40°.

Pressure30.56 inHg

Wind0.9 mph N

Humidity47%

Visibility6.2 mi

Dew point34°

Sun, 1863° / 42°

63 °

Latham, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.50 inHg

Wind9.5 mph S

Humidity36%

Visibility6.2 mi

Dew point31°

Mon, 1966° / 42°

66 °

Latham, Monday, 19 October

Clear. High 66°, low 42°.

Pressure30.39 inHg

Wind4.3 mph SE

Humidity42%

Visibility6.2 mi

Dew point39°

Tue, 2069° / 45°

69 °

Latham, Tuesday, 20 October

Clear. High 69°, low 45°.

Pressure30.36 inHg

Wind6.7 mph SE

Humidity36%

Visibility—

Dew point37°

Wed, 2170° / 44°

70 °

Latham, Wednesday, 21 October

Overcast. High 70°, low 44°.

Pressure30.30 inHg

Wind5.4 mph E

Humidity37%

Visibility—

Dew point38°

Thu, 2270° / 54°

70 °

Latham, Thursday, 22 October

Overcast. High 70°, low 54°.

Pressure30.18 inHg

Wind6.2 mph S

Humidity29%

Visibility—

Dew point35°

Fri, 2378° / 57°

78 °

Latham, Friday, 23 October

Clear. High 78°, low 57°.

Pressure30.18 inHg

Wind7.6 mph SE

Humidity25%

Visibility—

Dew point36°

Sat, 2477° / 55°

77 °

Latham, Saturday, 24 October

Mostly clear. High 77°, low 55°.

Pressure30.18 inHg

Wind10.2 mph SE

Humidity29%

Visibility—

Dew point38°

Sun, 2576° / 55°

76 °

Latham, Sunday, 25 October

Overcast. High 76°, low 55°.

Pressure30.15 inHg

Wind7.6 mph E

Humidity25%

Visibility—

Dew point33°

Mon, 2676° / 54°

0.02

76 °

Latham, Monday, 26 October

Light rain. High 76°, low 54°.

Pressure29.91 inHg

Wind12.4 mph S

Humidity29%

Visibility—

Dew point37°

Tue, 2763° / 48°

0.04

63 °

Latham, Tuesday, 27 October

Light rain. High 63°, low 48°.

Pressure29.91 inHg

Wind14.3 mph W

Humidity52%

Visibility—

Dew point41°

Wed, 2868° / 50°

68 °

Latham, Wednesday, 28 October

Overcast. High 68°, low 50°.

Pressure30.03 inHg

Wind11 mph S

Humidity33%

Visibility—

Dew point34°

Thu, 2962° / 55°

62 °

Latham, Thursday, 29 October

Overcast. High 62°, low 55°.

Pressure29.85 inHg

Wind11.4 mph S

Humidity75%

Visibility—

Dew point53°

Fri, 3069° / 50°

0.26

69 °

Latham, Friday, 30 October

Rain. High 69°, low 50°.

Pressure29.47 inHg

Wind26.3 mph SW

Humidity78%

Visibility—

Dew point59°

Sat, 3153° / 43°

53 °

Latham, Saturday, 31 October

Partly cloudy. High 53°, low 43°.

Pressure29.94 inHg

Wind19.6 mph W

Humidity39%

Visibility—

Dew point26°

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 Latham, 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 Latham, 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.