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As of 13:11 CDT

Weather in Monticello, IL

74°Current weather

Monticello, Thursday, 22 October, 13:11

Clear. Feels like 73°. High 74°, low 45°.

Pressure30.24 inHg
Wind1.8 mph NE
Humidity43%
Visibility6.2 mi
Dew point49°
Fri, 2373° / 46°0Mostly clear
73 °Mostly clear

Monticello, Friday, 23 October

Mostly clear. High 73°, low 46°.

Pressure30.33 inHg
Wind5.3 mph SE
Humidity42%
Visibility6.2 mi
Dew point45°
Sat, 2470° / 48°0Overcast
70 °Overcast

Monticello, Saturday, 24 October

Overcast. High 70°, low 48°.

Pressure30.39 inHg
Wind6.1 mph S
Humidity48%
Visibility6.2 mi
Dew point47°
Sun, 2573° / 49°0Mostly clear
73 °Mostly clear

Monticello, Sunday, 25 October

Mostly clear. High 73°, low 49°.

Pressure30.42 inHg
Wind4.9 mph S
Humidity45%
Visibility6.2 mi
Dew point48°
Mon, 2671° / 50°0Overcast
71 °Overcast

Monticello, Monday, 26 October

Overcast. High 71°, low 50°.

Pressure30.36 inHg
Wind3 mph S
Humidity54%
Visibility6.2 mi
Dew point50°
Tue, 2770° / 49°0Overcast
70 °Overcast

Monticello, Tuesday, 27 October

Overcast. High 70°, low 49°.

Pressure30.27 inHg
Wind4.7 mph SE
Humidity48%
Visibility—
Dew point47°
Wed, 2871° / 55°0Overcast
71 °Overcast

Monticello, Wednesday, 28 October

Overcast. High 71°, low 55°.

Pressure30.09 inHg
Wind13.8 mph SW
Humidity40%
Visibility—
Dew point44°
Thu, 2962° / 46°0.15Light rain
62 °Light rain

Monticello, Thursday, 29 October

Light rain. High 62°, low 46°.

Pressure30.15 inHg
Wind13.6 mph NW
Humidity63%
Visibility—
Dew point44°
Fri, 3057° / 38°0Overcast
57 °Overcast

Monticello, Friday, 30 October

Overcast. High 57°, low 38°.

Pressure30.27 inHg
Wind6.7 mph SE
Humidity32%
Visibility—
Dew point24°
Sat, 3155° / 45°0.5Rain
55 °Rain

Monticello, Saturday, 31 October

Rain. High 55°, low 45°.

Pressure30.09 inHg
Wind12.3 mph S
Humidity91%
Visibility—
Dew point48°
Sun, 0163° / 56°0.21Light rain
63 °Light rain

Monticello, Sunday, 1 November

Light rain. High 63°, low 56°.

Pressure30.03 inHg
Wind13 mph S
Humidity87%
Visibility—
Dew point55°
Mon, 0267° / 55°0Overcast
67 °Overcast

Monticello, Monday, 2 November

Overcast. High 67°, low 55°.

Pressure30.15 inHg
Wind7.1 mph NE
Humidity62%
Visibility—
Dew point52°
Tue, 0366° / 47°0Clear
66 °Clear

Monticello, Tuesday, 3 November

Clear. High 66°, low 47°.

Pressure30.18 inHg
Wind9.9 mph NW
Humidity31%
Visibility—
Dew point31°
Wed, 0458° / 45°0Partly cloudy
58 °Partly cloudy

Monticello, Wednesday, 4 November

Partly cloudy. High 58°, low 45°.

Pressure30.21 inHg
Wind10.2 mph N
Humidity28%
Visibility—
Dew point23°
Thu, 0556° / 39°0Clear
56 °Clear

Monticello, Thursday, 5 November

Clear. High 56°, low 39°.

Pressure30.21 inHg
Wind8.3 mph E
Humidity33%
Visibility—
Dew point24°
Fri, 0649° / 43°0.43Rain
49 °Rain

Monticello, Friday, 6 November

Rain. High 49°, low 43°.

Pressure30.03 inHg
Wind14 mph S
Humidity79%
Visibility—
Dew point38°

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.