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As of 09:38 CDT

Weather in Monticello, IL

54°Current weather

Monticello, Wednesday, 21 October, 09:38

Clear. Feels like 52°. High 73°, low 43°.

Pressure30.30 inHg
Wind1.1 mph S
Humidity66%
Visibility6.2 mi
Dew point43°
Thu, 2275° / 47°0Clear
75 °Clear

Monticello, Thursday, 22 October

Clear. High 75°, low 47°.

Pressure30.27 inHg
Wind1.7 mph NE
Humidity45%
Visibility6.2 mi
Dew point48°
Fri, 2371° / 49°0Clear
71 °Clear

Monticello, Friday, 23 October

Clear. High 71°, low 49°.

Pressure30.33 inHg
Wind6 mph SE
Humidity47%
Visibility6.2 mi
Dew point48°
Sat, 2469° / 48°0Overcast
69 °Overcast

Monticello, Saturday, 24 October

Overcast. High 69°, low 48°.

Pressure30.39 inHg
Wind6.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point47°
Sun, 2572° / 48°0Overcast
72 °Overcast

Monticello, Sunday, 25 October

Overcast. High 72°, low 48°.

Pressure30.36 inHg
Wind4.9 mph S
Humidity43%
Visibility—
Dew point45°
Mon, 2670° / 52°0Overcast
70 °Overcast

Monticello, Monday, 26 October

Overcast. High 70°, low 52°.

Pressure30.24 inHg
Wind8.8 mph SW
Humidity47%
Visibility—
Dew point46°
Tue, 2769° / 53°0Overcast
69 °Overcast

Monticello, Tuesday, 27 October

Overcast. High 69°, low 53°.

Pressure30.27 inHg
Wind9.4 mph E
Humidity49%
Visibility—
Dew point45°
Wed, 2874° / 58°0.02Light rain
74 °Light rain

Monticello, Wednesday, 28 October

Light rain. High 74°, low 58°.

Pressure30.09 inHg
Wind13.5 mph SW
Humidity40%
Visibility—
Dew point45°
Thu, 2967° / 53°0.05Light rain
67 °Light rain

Monticello, Thursday, 29 October

Light rain. High 67°, low 53°.

Pressure30.15 inHg
Wind12.4 mph NE
Humidity79%
Visibility—
Dew point53°
Fri, 3063° / 43°0Partly cloudy
63 °Partly cloudy

Monticello, Friday, 30 October

Partly cloudy. High 63°, low 43°.

Pressure30.21 inHg
Wind13.2 mph E
Humidity33%
Visibility—
Dew point30°
Sat, 3174° / 53°0Overcast
74 °Overcast

Monticello, Saturday, 31 October

Overcast. High 74°, low 53°.

Pressure29.97 inHg
Wind16.9 mph S
Humidity63%
Visibility—
Dew point51°
Sun, 0168° / 59°1.55Rain
68 °Rain

Monticello, Sunday, 1 November

Rain. High 68°, low 59°.

Pressure29.91 inHg
Wind21 mph S
Humidity90%
Visibility—
Dew point56°
Mon, 0263° / 61°0.32Rain
63 °Rain

Monticello, Monday, 2 November

Rain. High 63°, low 61°.

Pressure29.80 inHg
Wind12.9 mph S
Humidity91%
Visibility—
Dew point60°
Tue, 0363° / 59°0.33Rain
63 °Rain

Monticello, Tuesday, 3 November

Rain. High 63°, low 59°.

Pressure29.62 inHg
Wind12.2 mph NE
Humidity86%
Visibility—
Dew point59°
Wed, 0459° / 51°0.57Rain
59 °Rain

Monticello, Wednesday, 4 November

Rain. High 59°, low 51°.

Pressure29.38 inHg
Wind15.4 mph S
Humidity74%
Visibility—
Dew point50°
Thu, 0550° / 48°0.12Light rain
50 °Light rain

Monticello, Thursday, 5 November

Light rain. High 50°, low 48°.

Pressure29.62 inHg
Wind14.5 mph S
Humidity88%
Visibility—
Dew point45°

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.