As of 08:31 CDT

Weather in Monterey, IL

68°Current weather

Monterey, Tuesday, 13 October, 08:31

Overcast. Feels like 68°. High 84°, low 65°.

Pressure29.85 inHg
Wind6.6 mph W
Humidity71%
Visibility6.2 mi
Dew point58°

Monthly outlook for Monterey, IL: average high 64.9°, average low 52.3°. That is 2.4° above the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 13 October (84°), the coolest 17 October (38.9°).

64.9°/52.3°
Average high / low
+2.4°
Above normal
6 / 5
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October67.6°62°+3.1°
23 October – 1 November60.5°58.1°+1.3°
2 November – 11 Novemberat normal53.2°—

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).

Wed, 1479° / 63°0.06Rain
79 °Rain

Monterey, Wednesday, 14 October

Rain. High 79°, low 63°.

Pressure30.06 inHg
Wind5.9 mph NE
Humidity65%
Visibility6.2 mi
Dew point62°
Thu, 1574° / 60°1.22Heavy rain
74 °Heavy rain

Monterey, Thursday, 15 October

Heavy rain. High 74°, low 60°.

Pressure29.94 inHg
Wind9.1 mph S
Humidity98%
Visibility1.5 mi
Dew point68°
Fri, 1660° / 48°0Overcast
60 °Overcast

Monterey, Friday, 16 October

Overcast. High 60°, low 48°.

Pressure30.24 inHg
Wind22.5 mph NW
Humidity53%
Visibility6.2 mi
Dew point37°
Sat, 1757° / 39°0Clear
57 °Clear

Monterey, Saturday, 17 October

Clear. High 57°, low 39°.

Pressure30.50 inHg
Wind9 mph NW
Humidity44%
Visibility—
Dew point31°
Sun, 1863° / 45°0Clear
63 °Clear

Monterey, Sunday, 18 October

Clear. High 63°, low 45°.

Pressure30.30 inHg
Wind11.8 mph S
Humidity49%
Visibility—
Dew point40°
Mon, 1956° / 51°0.47Rain
56 °Rain

Monterey, Monday, 19 October

Rain. High 56°, low 51°.

Pressure30.21 inHg
Wind9.3 mph S
Humidity96%
Visibility—
Dew point52°
Tue, 2064° / 55°0.07Light rain
64 °Light rain

Monterey, Tuesday, 20 October

Light rain. High 64°, low 55°.

Pressure30.24 inHg
Wind8.1 mph SE
Humidity72%
Visibility—
Dew point53°
Wed, 2166° / 60°0.17Light rain
66 °Light rain

Monterey, Wednesday, 21 October

Light rain. High 66°, low 60°.

Pressure30.18 inHg
Wind9.7 mph S
Humidity90%
Visibility—
Dew point61°
Thu, 2273° / 64°0.24Light rain
73 °Light rain

Monterey, Thursday, 22 October

Light rain. High 73°, low 64°.

Pressure30.00 inHg
Wind14.9 mph S
Humidity77%
Visibility—
Dew point60°
Fri, 2372° / 59°0.01Light rain
72 °Light rain

Monterey, Friday, 23 October

Light rain. High 72°, low 59°.

Pressure29.91 inHg
Wind23.2 mph S
Humidity62%
Visibility—
Dew point58°
Sat, 2460° / 48°0Overcast
60 °Overcast

Monterey, Saturday, 24 October

Overcast. High 60°, low 48°.

Pressure30.36 inHg
Wind8.7 mph NW
Humidity43%
Visibility—
Dew point36°
Sun, 2561° / 48°0Clear
61 °Clear

Monterey, Sunday, 25 October

Clear. High 61°, low 48°.

Pressure30.27 inHg
Wind8.6 mph W
Humidity38%
Visibility—
Dew point33°
Mon, 2653° / 43°0Partly cloudy
53 °Partly cloudy

Monterey, Monday, 26 October

Partly cloudy. High 53°, low 43°.

Pressure30.27 inHg
Wind14.3 mph W
Humidity48%
Visibility—
Dew point32°
Tue, 2756° / 39°0Overcast
56 °Overcast

Monterey, Tuesday, 27 October

Overcast. High 56°, low 39°.

Pressure30.27 inHg
Wind9.3 mph SE
Humidity50%
Visibility—
Dew point33°
Wed, 2860° / 51°0.01Light rain
60 °Light rain

Monterey, Wednesday, 28 October

Light rain. High 60°, low 51°.

Pressure30.03 inHg
Wind12.5 mph S
Humidity49%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1051° / 37°0.15Climate normal
51 °Climate normal

Monterey, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation30%
Record high73° (2020)
Record low16° (2018)
Wed, 1149° / 35°0.07Climate normal
49 °Climate normal

Monterey, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high73° (1964)
Record low17° (2019)

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.