As of 05:10 CDT

Weather in Monterey, IL

54°Current weather

Monterey, Sunday, 11 October, 05:10

Clear. Feels like 53°. High 80°, low 53°.

Pressure30.00 inHg
Wind4 mph SE
Humidity89%
Visibility6.2 mi
Dew point51°

Monthly outlook for Monterey, IL: average high 65.9°, average low 47.6°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 12 October (85.8°), the coolest 18 October (28.4°).

65.9°/47.6°
Average high / low
+2.3°
Above normal
2 / 5
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October66.4°62.8°+2°
21 October – 30 October64.9°59°+3.3°
31 October – 9 Novemberat normal54.5°—

October records over 66 years

88.9°3 October 2006All-time high
19.9°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Trivoli (12 mi).

Mon, 1286° / 61°0Overcast
86 °Overcast

Monterey, Monday, 12 October

Overcast. High 86°, low 61°.

Pressure29.85 inHg
Wind10 mph S
Humidity57%
Visibility6.2 mi
Dew point62°
Tue, 1383° / 69°0.03Light rain
83 °Light rain

Monterey, Tuesday, 13 October

Light rain. High 83°, low 69°.

Pressure29.85 inHg
Wind6.6 mph W
Humidity61%
Visibility6.2 mi
Dew point65°
Wed, 1477° / 66°0.02Light rain
77 °Light rain

Monterey, Wednesday, 14 October

Light rain. High 77°, low 66°.

Pressure30.03 inHg
Wind7.4 mph NE
Humidity65%
Visibility6.2 mi
Dew point62°
Thu, 1562° / 57°0.96Heavy rain
62 °Heavy rain

Monterey, Thursday, 15 October

Heavy rain. High 62°, low 57°.

Pressure30.12 inHg
Wind11 mph E
Humidity96%
Visibility—
Dew point57°
Fri, 1658° / 44°0.03Light rain
58 °Light rain

Monterey, Friday, 16 October

Light rain. High 58°, low 44°.

Pressure30.42 inHg
Wind17.3 mph N
Humidity49%
Visibility—
Dew point38°
Sat, 1742° / 31°0Mostly clear
42 °Mostly clear

Monterey, Saturday, 17 October

Mostly clear. High 42°, low 31°.

Pressure30.45 inHg
Wind20.9 mph NW
Humidity41%
Visibility—
Dew point18°
Sun, 1849° / 28°0Clear
49 °Clear

Monterey, Sunday, 18 October

Clear. High 49°, low 28°.

Pressure30.53 inHg
Wind8.3 mph SW
Humidity32%
Visibility—
Dew point15°
Mon, 1961° / 37°0Overcast
61 °Overcast

Monterey, Monday, 19 October

Overcast. High 61°, low 37°.

Pressure30.30 inHg
Wind16.2 mph SW
Humidity30%
Visibility—
Dew point24°
Tue, 2067° / 42°0Clear
67 °Clear

Monterey, Tuesday, 20 October

Clear. High 67°, low 42°.

Pressure30.18 inHg
Wind14.2 mph SW
Humidity29%
Visibility—
Dew point28°
Wed, 2169° / 46°0Partly cloudy
69 °Partly cloudy

Monterey, Wednesday, 21 October

Partly cloudy. High 69°, low 46°.

Pressure30.18 inHg
Wind14.7 mph SW
Humidity29%
Visibility—
Dew point31°
Thu, 2272° / 55°0Overcast
72 °Overcast

Monterey, Thursday, 22 October

Overcast. High 72°, low 55°.

Pressure30.33 inHg
Wind10.1 mph N
Humidity52%
Visibility—
Dew point50°
Fri, 2371° / 48°0Partly cloudy
71 °Partly cloudy

Monterey, Friday, 23 October

Partly cloudy. High 71°, low 48°.

Pressure30.27 inHg
Wind16.1 mph S
Humidity40%
Visibility—
Dew point40°
Sat, 2464° / 46°0.09Light rain
64 °Light rain

Monterey, Saturday, 24 October

Light rain. High 64°, low 46°.

Pressure30.15 inHg
Wind18.7 mph NW
Humidity52%
Visibility—
Dew point41°
Sun, 2554° / 38°0Mostly clear
54 °Mostly clear

Monterey, Sunday, 25 October

Mostly clear. High 54°, low 38°.

Pressure30.39 inHg
Wind8.5 mph NW
Humidity43%
Visibility—
Dew point29°
Mon, 2660° / 40°0Clear
60 °Clear

Monterey, Monday, 26 October

Clear. High 60°, low 40°.

Pressure30.09 inHg
Wind12.5 mph NW
Humidity43%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2758° / 43°0.09Climate normal
58 °Climate normal

Monterey, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (2014)
Record low29° (1997)
Wed, 2857° / 42°0.04Climate normal
57 °Climate normal

Monterey, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation22%
Record high74° (1999)
Record low25° (1976)
Thu, 2958° / 42°0.08Climate normal
58 °Climate normal

Monterey, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation23%
Record high78° (2024)
Record low23° (1980)
Fri, 3059° / 43°0.12Climate normal
59 °Climate normal

Monterey, Friday, 30 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.12 in
Chance of precipitation32%
Record high78° (1971)
Record low26° (1980)
Sat, 3158° / 43°0.16Climate normal
58 °Climate normal

Monterey, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.16 in
Chance of precipitation38%
Record high75° (1968)
Record low22° (2019)
Sun, 0157° / 42°0.17Climate normal
57 °Climate normal

Monterey, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.17 in
Chance of precipitation30%
Record high77° (2016)
Record low22° (2019)
Mon, 0255° / 41°0.08Climate normal
55 °Climate normal

Monterey, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high75° (1961)
Record low23° (1991)
Tue, 0355° / 40°0.08Climate normal
55 °Climate normal

Monterey, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.09Climate normal
54 °Climate normal

Monterey, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.09 in
Chance of precipitation22%
Record high74° (1978)
Record low16° (1991)
Thu, 0553° / 39°0.13Climate normal
53 °Climate normal

Monterey, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (1978)
Record low19° (1991)
Fri, 0653° / 38°0.09Climate normal
53 °Climate normal

Monterey, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2020)
Record low23° (1991)
Sat, 0753° / 38°0.03Climate normal
53 °Climate normal

Monterey, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.03 in
Chance of precipitation18%
Record high70° (1966)
Record low16° (1991)
Sun, 0853° / 38°0.05Climate normal
53 °Climate normal

Monterey, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation22%
Record high76° (1999)
Record low13° (1991)
Mon, 0954° / 39°0.14Climate normal
54 °Climate normal

Monterey, Monday, 9 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (1999)
Record low16° (1991)

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 Monterey, 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 Monterey, 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.