As of 04:03 CDT

Weather in Monticello, IL

51°Current weather

Monticello, Friday, 30 October, 04:03

Mostly clear. Feels like 50°. High 70°, low 51°.

Pressure30.27 inHg
Wind6.8 mph NE
Humidity81%
Visibility6.2 mi
Dew point45°
Sat, 3171° / 54°0Overcast
71 °Overcast

Monticello, Saturday, 31 October

Overcast. High 71°, low 54°.

Pressure30.30 inHg
Wind7 mph SE
Humidity43%
Visibility6.2 mi
Dew point43°
Sun, 0170° / 57°0.05Light rain
70 °Light rain

Monticello, Sunday, 1 November

Light rain. High 70°, low 57°.

Pressure30.30 inHg
Wind9.3 mph SE
Humidity62%
Visibility6.2 mi
Dew point53°
Mon, 0268° / 57°0.02Light rain
68 °Light rain

Monticello, Monday, 2 November

Light rain. High 68°, low 57°.

Pressure30.12 inHg
Wind12.4 mph S
Humidity70%
Visibility6.2 mi
Dew point52°
Tue, 0371° / 64°0.35Rain
71 °Rain

Monticello, Tuesday, 3 November

Rain. High 71°, low 64°.

Pressure29.85 inHg
Wind16.8 mph S
Humidity84%
Visibility—
Dew point62°
Wed, 0465° / 56°0.33Rain
65 °Rain

Monticello, Wednesday, 4 November

Rain. High 65°, low 56°.

Pressure29.74 inHg
Wind15.3 mph S
Humidity81%
Visibility—
Dew point58°
Thu, 0560° / 54°0.06Light rain
60 °Light rain

Monticello, Thursday, 5 November

Light rain. High 60°, low 54°.

Pressure29.65 inHg
Wind13.9 mph N
Humidity90%
Visibility—
Dew point54°
Fri, 0660° / 46°0Partly cloudy
60 °Partly cloudy

Monticello, Friday, 6 November

Partly cloudy. High 60°, low 46°.

Pressure30.06 inHg
Wind9.3 mph N
Humidity44%
Visibility—
Dew point36°
Sat, 0762° / 44°0Overcast
62 °Overcast

Monticello, Saturday, 7 November

Overcast. High 62°, low 44°.

Pressure30.27 inHg
Wind8.1 mph S
Humidity45%
Visibility—
Dew point36°
Sun, 0863° / 51°0.2Light rain
63 °Light rain

Monticello, Sunday, 8 November

Light rain. High 63°, low 51°.

Pressure30.15 inHg
Wind14.4 mph NW
Humidity43%
Visibility—
Dew point40°
Mon, 0965° / 47°0Clear
65 °Clear

Monticello, Monday, 9 November

Clear. High 65°, low 47°.

Pressure30.18 inHg
Wind6.9 mph W
Humidity48%
Visibility—
Dew point41°
Tue, 1065° / 49°0Overcast
65 °Overcast

Monticello, Tuesday, 10 November

Overcast. High 65°, low 49°.

Pressure30.00 inHg
Wind9.2 mph S
Humidity44%
Visibility—
Dew point40°
Wed, 1160° / 53°0.17Light rain
60 °Light rain

Monticello, Wednesday, 11 November

Light rain. High 60°, low 53°.

Pressure29.65 inHg
Wind19.9 mph S
Humidity60%
Visibility—
Dew point46°
Thu, 1269° / 53°0.02Light rain
69 °Light rain

Monticello, Thursday, 12 November

Light rain. High 69°, low 53°.

Pressure29.50 inHg
Wind21.3 mph S
Humidity52%
Visibility—
Dew point48°
Fri, 1367° / 50°0.65Rain
67 °Rain

Monticello, Friday, 13 November

Rain. High 67°, low 50°.

Pressure29.88 inHg
Wind15.9 mph S
Humidity67%
Visibility—
Dew point47°
Sat, 1469° / 61°0.46Rain
69 °Rain

Monticello, Saturday, 14 November

Rain. High 69°, low 61°.

Pressure29.97 inHg
Wind22.5 mph S
Humidity42%
Visibility—
Dew point44°

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.