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As of 22:25 CDT

Weather in Monticello, IA

66°Current weather

Monticello, Saturday, 8 August, 22:25

Overcast. Feels like 66°. High 81°, low 63°.

Pressure30.03 inHg
Wind5.3 mph S
Humidity78%
Visibility6.2 mi
Dew point60°
Sun, 0986° / 64°0Overcast
86 °Overcast

Monticello, Sunday, 9 August

Overcast. High 86°, low 64°.

Pressure29.88 inHg
Wind7.2 mph E
Humidity79%
Visibility6.2 mi
Dew point73°
Mon, 1086° / 70°0Overcast
86 °Overcast

Monticello, Monday, 10 August

Overcast. High 86°, low 70°.

Pressure29.88 inHg
Wind5.8 mph E
Humidity77%
Visibility6.2 mi
Dew point74°
Tue, 1185° / 70°0Light rain
85 °Light rain

Monticello, Tuesday, 11 August

Light rain. High 85°, low 70°.

Pressure29.77 inHg
Wind5 mph N
Humidity74%
Visibility6.2 mi
Dew point72°
Wed, 1281° / 68°0Overcast
81 °Overcast

Monticello, Wednesday, 12 August

Overcast. High 81°, low 68°.

Pressure29.91 inHg
Wind6.1 mph N
Humidity77%
Visibility6.2 mi
Dew point69°
Thu, 1371° / 59°0.02Light rain
71 °Light rain

Monticello, Thursday, 13 August

Light rain. High 71°, low 59°.

Pressure30.00 inHg
Wind9.5 mph E
Humidity81%
Visibility—
Dew point63°
Fri, 1477° / 59°0Overcast
77 °Overcast

Monticello, Friday, 14 August

Overcast. High 77°, low 59°.

Pressure30.12 inHg
Wind6.3 mph SE
Humidity59%
Visibility—
Dew point58°
Sat, 1565° / 58°0.11Light rain
65 °Light rain

Monticello, Saturday, 15 August

Light rain. High 65°, low 58°.

Pressure30.30 inHg
Wind9.2 mph SE
Humidity96%
Visibility—
Dew point57°
Sun, 1669° / 57°0.02Light rain
69 °Light rain

Monticello, Sunday, 16 August

Light rain. High 69°, low 57°.

Pressure30.15 inHg
Wind6.8 mph E
Humidity82%
Visibility—
Dew point57°
Mon, 1781° / 63°0Mostly clear
81 °Mostly clear

Monticello, Monday, 17 August

Mostly clear. High 81°, low 63°.

Pressure30.06 inHg
Wind6.4 mph S
Humidity67%
Visibility—
Dew point65°
Tue, 1886° / 66°0Partly cloudy
86 °Partly cloudy

Monticello, Tuesday, 18 August

Partly cloudy. High 86°, low 66°.

Pressure29.94 inHg
Wind14.5 mph SW
Humidity67%
Visibility—
Dew point68°
Wed, 1973° / 61°0.05Light rain
73 °Light rain

Monticello, Wednesday, 19 August

Light rain. High 73°, low 61°.

Pressure30.00 inHg
Wind15.8 mph N
Humidity78%
Visibility—
Dew point61°
Thu, 2064° / 53°0.07Light rain
64 °Light rain

Monticello, Thursday, 20 August

Light rain. High 64°, low 53°.

Pressure30.09 inHg
Wind8.3 mph NE
Humidity71%
Visibility—
Dew point53°
Fri, 2173° / 52°0Overcast
73 °Overcast

Monticello, Friday, 21 August

Overcast. High 73°, low 52°.

Pressure30.06 inHg
Wind7.8 mph S
Humidity62%
Visibility—
Dew point55°
Sat, 2278° / 56°0.13Rain
78 °Rain

Monticello, Saturday, 22 August

Rain. High 78°, low 56°.

Pressure29.83 inHg
Wind10.4 mph S
Humidity75%
Visibility—
Dew point62°
Sun, 2377° / 63°0Clear
77 °Clear

Monticello, Sunday, 23 August

Clear. High 77°, low 63°.

Pressure29.94 inHg
Wind11.9 mph NW
Humidity57%
Visibility—
Dew point58°

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, IA 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, IA 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.