As of 17:19 CDT

Weather in Monterey, IL

55°Current weather

Monterey, Saturday, 17 October, 17:19

Clear. Feels like 53°. High 56°, low 36°.

Pressure30.45 inHg
Wind4.7 mph SW
Humidity47%
Visibility6.2 mi
Dew point36°

Monthly outlook for Monterey, IL: average high 68.3°, average low 49.5°. That is 5° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 25 October (77.6°), the coolest 17 October (36.4°).

68.3°/49.5°
Average high / low
+5°
Above normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October68.7°60.2°+4.7°
27 October – 5 November67.6°56.3°+6.3°
6 November – 15 Novemberat normal51°—

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).

Sun, 1862° / 40°0Clear
62 °Clear

Monterey, Sunday, 18 October

Clear. High 62°, low 40°.

Pressure30.45 inHg
Wind10.5 mph S
Humidity51%
Visibility6.2 mi
Dew point39°
Mon, 1964° / 43°0Overcast
64 °Overcast

Monterey, Monday, 19 October

Overcast. High 64°, low 43°.

Pressure30.39 inHg
Wind4.2 mph S
Humidity58%
Visibility6.2 mi
Dew point46°
Tue, 2066° / 44°0.03Light rain
66 °Light rain

Monterey, Tuesday, 20 October

Light rain. High 66°, low 44°.

Pressure30.39 inHg
Wind3.7 mph SE
Humidity51%
Visibility6.2 mi
Dew point46°
Wed, 2169° / 49°0.01Light rain
69 °Light rain

Monterey, Wednesday, 21 October

Light rain. High 69°, low 49°.

Pressure30.27 inHg
Wind2.9 mph S
Humidity56%
Visibility6.2 mi
Dew point49°
Thu, 2269° / 49°0Clear
69 °Clear

Monterey, Thursday, 22 October

Clear. High 69°, low 49°.

Pressure30.27 inHg
Wind6.5 mph E
Humidity50%
Visibility—
Dew point47°
Fri, 2374° / 50°0Overcast
74 °Overcast

Monterey, Friday, 23 October

Overcast. High 74°, low 50°.

Pressure30.24 inHg
Wind8.4 mph S
Humidity43%
Visibility—
Dew point45°
Sat, 2476° / 56°0Overcast
76 °Overcast

Monterey, Saturday, 24 October

Overcast. High 76°, low 56°.

Pressure30.24 inHg
Wind11.7 mph S
Humidity29%
Visibility—
Dew point36°
Sun, 2578° / 60°0Overcast
78 °Overcast

Monterey, Sunday, 25 October

Overcast. High 78°, low 60°.

Pressure30.15 inHg
Wind12.9 mph SW
Humidity31%
Visibility—
Dew point41°
Mon, 2673° / 58°0.2Rain
73 °Rain

Monterey, Monday, 26 October

Rain. High 73°, low 58°.

Pressure30.12 inHg
Wind10.7 mph NE
Humidity52%
Visibility—
Dew point53°
Tue, 2761° / 48°0.05Light rain
61 °Light rain

Monterey, Tuesday, 27 October

Light rain. High 61°, low 48°.

Pressure30.30 inHg
Wind14.8 mph NE
Humidity53%
Visibility—
Dew point42°
Wed, 2862° / 42°0Overcast
62 °Overcast

Monterey, Wednesday, 28 October

Overcast. High 62°, low 42°.

Pressure30.27 inHg
Wind13 mph SE
Humidity41%
Visibility—
Dew point33°
Thu, 2969° / 49°0.22Light rain
69 °Light rain

Monterey, Thursday, 29 October

Light rain. High 69°, low 49°.

Pressure29.91 inHg
Wind13.6 mph S
Humidity77%
Visibility—
Dew point55°
Fri, 3068° / 60°0.36Rain
68 °Rain

Monterey, Friday, 30 October

Rain. High 68°, low 60°.

Pressure29.83 inHg
Wind17.5 mph S
Humidity85%
Visibility—
Dew point58°
Sat, 3169° / 55°0.77Rain
69 °Rain

Monterey, Saturday, 31 October

Rain. High 69°, low 55°.

Pressure29.88 inHg
Wind22.2 mph SW
Humidity59%
Visibility—
Dew point53°
Sun, 0177° / 51°0.05Light rain
77 °Light rain

Monterey, Sunday, 1 November

Light rain. High 77°, low 51°.

Pressure30.09 inHg
Wind11.8 mph S
Humidity69%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1248° / 34°0.07Climate normal
48 °Climate normal

Monterey, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (2010)
Record low8° (2019)
Fri, 1349° / 34°0.06Climate normal
49 °Climate normal

Monterey, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation13%
Record high73° (1999)
Record low7° (1986)
Sat, 1450° / 35°0.07Climate normal
50 °Climate normal

Monterey, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (2025)
Record low13° (1986)
Sun, 1549° / 35°0.06Climate normal
49 °Climate normal

Monterey, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (2025)
Record low18° (2014)

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.