As of 03:29 CDT

Weather in Monmouth, IL

41°

Monmouth, Sunday, 18 October, 03:29

Clear. Feels like 38°. High 64°, low 40°.

Pressure30.42 inHg

Wind4.6 mph S

Humidity78%

Visibility6.2 mi

Dew point34°

See detailed hourly forecast

Mon, 1966° / 43°

66 °

Monmouth, Monday, 19 October

Overcast. High 66°, low 43°.

Pressure30.39 inHg

Wind4.9 mph S

Humidity55%

Visibility6.2 mi

Dew point46°

Tue, 2067° / 44°

67 °

Monmouth, Tuesday, 20 October

Clear. High 67°, low 44°.

Pressure30.36 inHg

Wind6 mph SE

Humidity48%

Visibility6.2 mi

Dew point45°

Wed, 2169° / 47°

69 °

Monmouth, Wednesday, 21 October

Mostly clear. High 69°, low 47°.

Pressure30.27 inHg

Wind4.5 mph S

Humidity50%

Visibility6.2 mi

Dew point48°

Thu, 2270° / 51°

70 °

Monmouth, Thursday, 22 October

Clear. High 70°, low 51°.

Pressure30.27 inHg

Wind5.1 mph SE

Humidity50%

Visibility—

Dew point48°

Fri, 2368° / 52°

68 °

Monmouth, Friday, 23 October

Clear. High 68°, low 52°.

Pressure30.30 inHg

Wind11.3 mph SE

Humidity52%

Visibility—

Dew point47°

Sat, 2475° / 59°

75 °

Monmouth, Saturday, 24 October

Overcast. High 75°, low 59°.

Pressure30.18 inHg

Wind16.5 mph S

Humidity32%

Visibility—

Dew point41°

Sun, 2561° / 46°

61 °

Monmouth, Sunday, 25 October

Overcast. High 61°, low 46°.

Pressure30.47 inHg

Wind12.7 mph NW

Humidity40%

Visibility—

Dew point31°

Mon, 2655° / 41°

0.03

55 °

Monmouth, Monday, 26 October

Light rain. High 55°, low 41°.

Pressure30.33 inHg

Wind10.9 mph S

Humidity32%

Visibility—

Dew point24°

Tue, 2768° / 49°

0.01

68 °

Monmouth, Tuesday, 27 October

Light rain. High 68°, low 49°.

Pressure30.15 inHg

Wind7 mph S

Humidity52%

Visibility—

Dew point46°

Wed, 2861° / 58°

61 °

Monmouth, Wednesday, 28 October

Overcast. High 61°, low 58°.

Pressure29.97 inHg

Wind6.9 mph S

Humidity77%

Visibility—

Dew point53°

Thu, 2969° / 57°

69 °

Monmouth, Thursday, 29 October

Overcast. High 69°, low 57°.

Pressure29.77 inHg

Wind5.7 mph SW

Humidity58%

Visibility—

Dew point51°

Fri, 3074° / 54°

74 °

Monmouth, Friday, 30 October

Clear. High 74°, low 54°.

Pressure29.74 inHg

Wind15.6 mph SW

Humidity52%

Visibility—

Dew point50°

Sat, 3177° / 57°

0.04

77 °

Monmouth, Saturday, 31 October

Light rain. High 77°, low 57°.

Pressure29.74 inHg

Wind14.1 mph SW

Humidity60%

Visibility—

Dew point57°

Sun, 0179° / 61°

79 °

Monmouth, Sunday, 1 November

Partly cloudy. High 79°, low 61°.

Pressure29.91 inHg

Wind14.9 mph SW

Humidity48%

Visibility—

Dew point54°

Mon, 0268° / 56°

68 °

Monmouth, Monday, 2 November

Overcast. High 68°, low 56°.

Pressure30.21 inHg

Wind13.2 mph NE

Humidity31%

Visibility—

Dew point35°

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 Monmouth, 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 Monmouth, 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.