As of 20:40 CDT

Weather in Monterey, IL

70°Current weather

Monterey, Thursday, 15 October, 20:40

Overcast. Feels like 71°. High 70°, low 61°.

Pressure29.88 inHg
Wind17.2 mph W
Humidity89%
Visibility6.2 mi
Dew point67°

Monthly outlook for Monterey, IL: average high 66.8°, average low 49.9°. That is 3.8° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 October (76.6°), the coolest 17 October (37.6°).

66.8°/49.9°
Average high / low
+3.8°
Above normal
3 / 4
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October68°61.1°+3.8°
25 October – 3 November64.8°57.1°+4.2°
4 November – 13 Novemberat normal51.9°—

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).

Fri, 1662° / 47°0.04Light rain
62 °Light rain

Monterey, Friday, 16 October

Light rain. High 62°, low 47°.

Pressure30.18 inHg
Wind16.2 mph NW
Humidity58%
Visibility4.7 mi
Dew point40°
Sat, 1756° / 38°0Clear
56 °Clear

Monterey, Saturday, 17 October

Clear. High 56°, low 38°.

Pressure30.59 inHg
Wind0.9 mph S
Humidity45%
Visibility6.2 mi
Dew point29°
Sun, 1862° / 42°0Clear
62 °Clear

Monterey, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.47 inHg
Wind11.1 mph S
Humidity51%
Visibility6.2 mi
Dew point40°
Mon, 1965° / 43°0Clear
65 °Clear

Monterey, Monday, 19 October

Clear. High 65°, low 43°.

Pressure30.39 inHg
Wind6.2 mph S
Humidity55%
Visibility6.2 mi
Dew point43°
Tue, 2067° / 47°0Clear
67 °Clear

Monterey, Tuesday, 20 October

Clear. High 67°, low 47°.

Pressure30.33 inHg
Wind6 mph S
Humidity47%
Visibility—
Dew point43°
Wed, 2169° / 52°0Overcast
69 °Overcast

Monterey, Wednesday, 21 October

Overcast. High 69°, low 52°.

Pressure30.30 inHg
Wind5.9 mph SE
Humidity48%
Visibility—
Dew point44°
Thu, 2276° / 54°0Partly cloudy
76 °Partly cloudy

Monterey, Thursday, 22 October

Partly cloudy. High 76°, low 54°.

Pressure30.24 inHg
Wind7.6 mph S
Humidity31%
Visibility—
Dew point38°
Fri, 2376° / 56°0Partly cloudy
76 °Partly cloudy

Monterey, Friday, 23 October

Partly cloudy. High 76°, low 56°.

Pressure30.15 inHg
Wind11 mph SE
Humidity27%
Visibility—
Dew point36°
Sat, 2477° / 58°0Overcast
77 °Overcast

Monterey, Saturday, 24 October

Overcast. High 77°, low 58°.

Pressure30.18 inHg
Wind9.3 mph S
Humidity30%
Visibility—
Dew point38°
Sun, 2574° / 55°0Overcast
74 °Overcast

Monterey, Sunday, 25 October

Overcast. High 74°, low 55°.

Pressure30.24 inHg
Wind7.6 mph E
Humidity34%
Visibility—
Dew point40°
Mon, 2674° / 58°0Overcast
74 °Overcast

Monterey, Monday, 26 October

Overcast. High 74°, low 58°.

Pressure30.00 inHg
Wind12.9 mph SE
Humidity31%
Visibility—
Dew point37°
Tue, 2763° / 45°0Clear
63 °Clear

Monterey, Tuesday, 27 October

Clear. High 63°, low 45°.

Pressure30.03 inHg
Wind12.3 mph W
Humidity55%
Visibility—
Dew point42°
Wed, 2857° / 49°1.43Heavy rain
57 °Heavy rain

Monterey, Wednesday, 28 October

Heavy rain. High 57°, low 49°.

Pressure29.62 inHg
Wind24.2 mph W
Humidity97%
Visibility—
Dew point55°
Thu, 2958° / 46°0.1Light rain
58 °Light rain

Monterey, Thursday, 29 October

Light rain. High 58°, low 46°.

Pressure29.94 inHg
Wind22.3 mph W
Humidity62%
Visibility—
Dew point43°
Fri, 3063° / 48°0Mostly clear
63 °Mostly clear

Monterey, Friday, 30 October

Mostly clear. High 63°, low 48°.

Pressure30.06 inHg
Wind9.2 mph NW
Humidity38%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.