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As of 09:51 CDT

Weather in Monticello, IL

61°Current weather

Monticello, Sunday, 25 October, 09:51

Overcast. Feels like 60°. High 73°, low 48°.

Pressure30.45 inHg
Wind3.8 mph SE
Humidity68%
Visibility6.2 mi
Dew point51°
Mon, 2673° / 50°0Overcast
73 °Overcast

Monticello, Monday, 26 October

Overcast. High 73°, low 50°.

Pressure30.33 inHg
Wind1.8 mph S
Humidity48%
Visibility6.2 mi
Dew point50°
Tue, 2771° / 50°0Overcast
71 °Overcast

Monticello, Tuesday, 27 October

Overcast. High 71°, low 50°.

Pressure30.27 inHg
Wind6.9 mph S
Humidity54%
Visibility6.2 mi
Dew point51°
Wed, 2872° / 56°0.04Light rain
72 °Light rain

Monticello, Wednesday, 28 October

Light rain. High 72°, low 56°.

Pressure30.21 inHg
Wind7.9 mph S
Humidity54%
Visibility6.2 mi
Dew point51°
Thu, 2977° / 56°0.03Light rain
77 °Light rain

Monticello, Thursday, 29 October

Light rain. High 77°, low 56°.

Pressure30.12 inHg
Wind12.7 mph SW
Humidity51%
Visibility—
Dew point53°
Fri, 3069° / 57°0Light rain
69 °Light rain

Monticello, Friday, 30 October

Light rain. High 69°, low 57°.

Pressure30.24 inHg
Wind6.2 mph SE
Humidity68%
Visibility—
Dew point56°
Sat, 3175° / 58°0.01Light rain
75 °Light rain

Monticello, Saturday, 31 October

Light rain. High 75°, low 58°.

Pressure30.12 inHg
Wind9.5 mph S
Humidity37%
Visibility—
Dew point45°
Sun, 0161° / 58°0.67Rain
61 °Rain

Monticello, Sunday, 1 November

Rain. High 61°, low 58°.

Pressure30.03 inHg
Wind8.4 mph SE
Humidity92%
Visibility—
Dew point58°
Mon, 0272° / 56°0Overcast
72 °Overcast

Monticello, Monday, 2 November

Overcast. High 72°, low 56°.

Pressure30.03 inHg
Wind15.1 mph S
Humidity54%
Visibility—
Dew point51°
Tue, 0375° / 59°0.07Light rain
75 °Light rain

Monticello, Tuesday, 3 November

Light rain. High 75°, low 59°.

Pressure29.83 inHg
Wind16.5 mph S
Humidity47%
Visibility—
Dew point52°
Wed, 0465° / 50°0Clear
65 °Clear

Monticello, Wednesday, 4 November

Clear. High 65°, low 50°.

Pressure29.83 inHg
Wind19.2 mph W
Humidity26%
Visibility—
Dew point27°
Thu, 0558° / 46°0Overcast
58 °Overcast

Monticello, Thursday, 5 November

Overcast. High 58°, low 46°.

Pressure29.83 inHg
Wind12.3 mph W
Humidity55%
Visibility—
Dew point38°
Fri, 0659° / 44°0Clear
59 °Clear

Monticello, Friday, 6 November

Clear. High 59°, low 44°.

Pressure29.80 inHg
Wind12.8 mph NW
Humidity49%
Visibility—
Dew point37°
Sat, 0766° / 45°0.01Light rain
66 °Light rain

Monticello, Saturday, 7 November

Light rain. High 66°, low 45°.

Pressure29.71 inHg
Wind15.4 mph SE
Humidity40%
Visibility—
Dew point36°
Sun, 0861° / 48°0.12Light rain
61 °Light rain

Monticello, Sunday, 8 November

Light rain. High 61°, low 48°.

Pressure29.50 inHg
Wind19.5 mph W
Humidity53%
Visibility—
Dew point42°
Mon, 0952° / 44°0.06Light rain
52 °Light rain

Monticello, Monday, 9 November

Light rain. High 52°, low 44°.

Pressure29.94 inHg
Wind19.6 mph NW
Humidity61%
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 Monticello, 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 Monticello, 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.