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As of 18:06 CDT

Weather in Monmouth, IL

61°Current weather

Monmouth, Sunday, 18 October, 18:06

Clear. Feels like 59°. High 63°, low 39°.

Pressure30.33 inHg
Wind4.6 mph SE
Humidity52%
Visibility6.2 mi
Dew point43°
Mon, 1966° / 40°0Overcast
66 °Overcast

Monmouth, Monday, 19 October

Overcast. High 66°, low 40°.

Pressure30.39 inHg
Wind5 mph S
Humidity55%
Visibility6.2 mi
Dew point45°
Tue, 2067° / 43°0Clear
67 °Clear

Monmouth, Tuesday, 20 October

Clear. High 67°, low 43°.

Pressure30.36 inHg
Wind5.4 mph SE
Humidity49%
Visibility6.2 mi
Dew point45°
Wed, 2169° / 46°0Clear
69 °Clear

Monmouth, Wednesday, 21 October

Clear. High 69°, low 46°.

Pressure30.30 inHg
Wind2.4 mph S
Humidity52%
Visibility6.2 mi
Dew point48°
Thu, 2269° / 49°0Clear
69 °Clear

Monmouth, Thursday, 22 October

Clear. High 69°, low 49°.

Pressure30.30 inHg
Wind4.8 mph E
Humidity55%
Visibility6.2 mi
Dew point50°
Fri, 2368° / 50°0Clear
68 °Clear

Monmouth, Friday, 23 October

Clear. High 68°, low 50°.

Pressure30.27 inHg
Wind10.8 mph SE
Humidity53%
Visibility—
Dew point47°
Sat, 2474° / 53°0Overcast
74 °Overcast

Monmouth, Saturday, 24 October

Overcast. High 74°, low 53°.

Pressure30.27 inHg
Wind13.6 mph S
Humidity43%
Visibility—
Dew point45°
Sun, 2564° / 55°0Overcast
64 °Overcast

Monmouth, Sunday, 25 October

Overcast. High 64°, low 55°.

Pressure30.39 inHg
Wind9.6 mph N
Humidity47%
Visibility—
Dew point39°
Mon, 2664° / 54°0Overcast
64 °Overcast

Monmouth, Monday, 26 October

Overcast. High 64°, low 54°.

Pressure30.33 inHg
Wind9.5 mph E
Humidity51%
Visibility—
Dew point44°
Tue, 2768° / 54°0Overcast
68 °Overcast

Monmouth, Tuesday, 27 October

Overcast. High 68°, low 54°.

Pressure30.27 inHg
Wind8.7 mph E
Humidity49%
Visibility—
Dew point45°
Wed, 2867° / 58°0Overcast
67 °Overcast

Monmouth, Wednesday, 28 October

Overcast. High 67°, low 58°.

Pressure30.18 inHg
Wind8.1 mph SE
Humidity55%
Visibility—
Dew point47°
Thu, 2970° / 56°0.01Light rain
70 °Light rain

Monmouth, Thursday, 29 October

Light rain. High 70°, low 56°.

Pressure30.00 inHg
Wind14.5 mph SW
Humidity55%
Visibility—
Dew point49°
Fri, 3064° / 51°0.19Light rain
64 °Light rain

Monmouth, Friday, 30 October

Light rain. High 64°, low 51°.

Pressure29.91 inHg
Wind14.6 mph SW
Humidity47%
Visibility—
Dew point43°
Sat, 3161° / 45°0Overcast
61 °Overcast

Monmouth, Saturday, 31 October

Overcast. High 61°, low 45°.

Pressure30.12 inHg
Wind6.1 mph E
Humidity46%
Visibility—
Dew point37°
Sun, 0158° / 53°0.26Rain
58 °Rain

Monmouth, Sunday, 1 November

Rain. High 58°, low 53°.

Pressure29.85 inHg
Wind11.6 mph E
Humidity97%
Visibility—
Dew point53°
Mon, 0254° / 40°0.61Rain
54 °Rain

Monmouth, Monday, 2 November

Rain. High 54°, low 40°.

Pressure30.15 inHg
Wind17.9 mph N
Humidity85%
Visibility—
Dew point40°

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.