EN
English Español

As of 12:34 CDT

Weather in Monticello, IL

71°Current weather

Monticello, Thursday, 15 October, 12:34

Rain. Feels like 72°. High 77°, low 62°.

Pressure29.97 inHg
Wind10 mph S
Humidity86%
Visibility3.6 mi
Dew point67°
Fri, 1665° / 51°0.08Light rain
65 °Light rain

Monticello, Friday, 16 October

Light rain. High 65°, low 51°.

Pressure30.12 inHg
Wind18.1 mph NW
Humidity49%
Visibility6.2 mi
Dew point37°
Sat, 1758° / 40°0Clear
58 °Clear

Monticello, Saturday, 17 October

Clear. High 58°, low 40°.

Pressure30.56 inHg
Wind1.1 mph N
Humidity43%
Visibility6.2 mi
Dew point31°
Sun, 1863° / 42°0Clear
63 °Clear

Monticello, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.47 inHg
Wind9.8 mph S
Humidity38%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 43°0Overcast
68 °Overcast

Monticello, Monday, 19 October

Overcast. High 68°, low 43°.

Pressure30.39 inHg
Wind6.8 mph S
Humidity46%
Visibility6.2 mi
Dew point42°
Tue, 2070° / 48°0Overcast
70 °Overcast

Monticello, Tuesday, 20 October

Overcast. High 70°, low 48°.

Pressure30.33 inHg
Wind4.9 mph S
Humidity41%
Visibility—
Dew point41°
Wed, 2172° / 55°0Overcast
72 °Overcast

Monticello, Wednesday, 21 October

Overcast. High 72°, low 55°.

Pressure30.33 inHg
Wind6.3 mph SE
Humidity43%
Visibility—
Dew point45°
Thu, 2274° / 54°0Overcast
74 °Overcast

Monticello, Thursday, 22 October

Overcast. High 74°, low 54°.

Pressure30.24 inHg
Wind6.8 mph SE
Humidity34%
Visibility—
Dew point40°
Fri, 2375° / 55°0Overcast
75 °Overcast

Monticello, Friday, 23 October

Overcast. High 75°, low 55°.

Pressure30.24 inHg
Wind12.7 mph SE
Humidity31%
Visibility—
Dew point39°
Sat, 2475° / 56°0Overcast
75 °Overcast

Monticello, Saturday, 24 October

Overcast. High 75°, low 56°.

Pressure30.18 inHg
Wind15.5 mph S
Humidity40%
Visibility—
Dew point44°
Sun, 2568° / 52°0Clear
68 °Clear

Monticello, Sunday, 25 October

Clear. High 68°, low 52°.

Pressure30.47 inHg
Wind13.6 mph NE
Humidity43%
Visibility—
Dew point42°
Mon, 2671° / 47°0Overcast
71 °Overcast

Monticello, Monday, 26 October

Overcast. High 71°, low 47°.

Pressure30.45 inHg
Wind10.2 mph NE
Humidity46%
Visibility—
Dew point43°
Tue, 2779° / 58°0Overcast
79 °Overcast

Monticello, Tuesday, 27 October

Overcast. High 79°, low 58°.

Pressure30.15 inHg
Wind17.4 mph SW
Humidity31%
Visibility—
Dew point42°
Wed, 2873° / 64°0.05Light rain
73 °Light rain

Monticello, Wednesday, 28 October

Light rain. High 73°, low 64°.

Pressure30.03 inHg
Wind15.4 mph SW
Humidity34%
Visibility—
Dew point42°
Thu, 2967° / 61°0.67Rain
67 °Rain

Monticello, Thursday, 29 October

Rain. High 67°, low 61°.

Pressure30.00 inHg
Wind14.6 mph S
Humidity72%
Visibility—
Dew point54°
Fri, 3074° / 63°1.34Heavy rain
74 °Heavy rain

Monticello, Friday, 30 October

Heavy rain. High 74°, low 63°.

Pressure29.77 inHg
Wind22.6 mph W
Humidity74%
Visibility—
Dew point64°

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.