As of 01:57 CDT

Weather in Pecatonica, IL

57°Current weather

Pecatonica, Thursday, 15 October, 01:57

Overcast. Feels like 57°. High 64°, low 54°.

Pressure30.18 inHg
Wind9.2 mph E
Humidity82%
Visibility4.7 mi
Dew point52°

Monthly outlook for Pecatonica, IL: average high 62°, average low 46.1°. That is 2.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 23 October (74.8°), the coolest 17 October (35°).

62°/46.1°
Average high / low
+2.6°
Above normal
2 / 5
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October64.8°58.5°+3.5°
25 October – 3 November57.2°54.5°+1.5°
4 November – 13 Novemberat normal48.8°—

October records over 66 years

88°3 October 2025All-time high
22.1°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Rockford (15 mi).

Fri, 1654° / 42°0.02Light rain
54 °Light rain

Pecatonica, Friday, 16 October

Light rain. High 54°, low 42°.

Pressure30.09 inHg
Wind19.2 mph NW
Humidity70%
Visibility6.2 mi
Dew point42°
Sat, 1755° / 35°0Clear
55 °Clear

Pecatonica, Saturday, 17 October

Clear. High 55°, low 35°.

Pressure30.53 inHg
Wind6.1 mph SW
Humidity48%
Visibility6.2 mi
Dew point32°
Sun, 1860° / 42°0Clear
60 °Clear

Pecatonica, Sunday, 18 October

Clear. High 60°, low 42°.

Pressure30.42 inHg
Wind13.5 mph SW
Humidity47%
Visibility6.2 mi
Dew point36°
Mon, 1963° / 41°0Overcast
63 °Overcast

Pecatonica, Monday, 19 October

Overcast. High 63°, low 41°.

Pressure30.36 inHg
Wind7.1 mph SW
Humidity51%
Visibility—
Dew point40°
Tue, 2066° / 41°0Mostly clear
66 °Mostly clear

Pecatonica, Tuesday, 20 October

Mostly clear. High 66°, low 41°.

Pressure30.33 inHg
Wind5.8 mph SE
Humidity47%
Visibility—
Dew point41°
Wed, 2170° / 52°0Overcast
70 °Overcast

Pecatonica, Wednesday, 21 October

Overcast. High 70°, low 52°.

Pressure30.30 inHg
Wind12.7 mph S
Humidity53%
Visibility—
Dew point49°
Thu, 2273° / 57°0Overcast
73 °Overcast

Pecatonica, Thursday, 22 October

Overcast. High 73°, low 57°.

Pressure30.18 inHg
Wind13.7 mph S
Humidity50%
Visibility—
Dew point50°
Fri, 2375° / 61°0Overcast
75 °Overcast

Pecatonica, Friday, 23 October

Overcast. High 75°, low 61°.

Pressure29.94 inHg
Wind21.4 mph S
Humidity58%
Visibility—
Dew point57°
Sat, 2469° / 53°0Partly cloudy
69 °Partly cloudy

Pecatonica, Saturday, 24 October

Partly cloudy. High 69°, low 53°.

Pressure30.18 inHg
Wind7 mph N
Humidity45%
Visibility—
Dew point44°
Sun, 2556° / 50°0.01Light rain
56 °Light rain

Pecatonica, Sunday, 25 October

Light rain. High 56°, low 50°.

Pressure30.21 inHg
Wind12.7 mph N
Humidity62%
Visibility—
Dew point42°
Mon, 2655° / 42°0.06Light rain
55 °Light rain

Pecatonica, Monday, 26 October

Light rain. High 55°, low 42°.

Pressure30.03 inHg
Wind13.3 mph W
Humidity41%
Visibility—
Dew point29°
Tue, 2758° / 43°0Clear
58 °Clear

Pecatonica, Tuesday, 27 October

Clear. High 58°, low 43°.

Pressure30.12 inHg
Wind6.6 mph SW
Humidity46%
Visibility—
Dew point35°
Wed, 2859° / 44°0Partly cloudy
59 °Partly cloudy

Pecatonica, Wednesday, 28 October

Partly cloudy. High 59°, low 44°.

Pressure29.91 inHg
Wind9.3 mph SW
Humidity49%
Visibility—
Dew point38°
Thu, 2958° / 44°0Clear
58 °Clear

Pecatonica, Thursday, 29 October

Clear. High 58°, low 44°.

Pressure30.00 inHg
Wind14.7 mph NW
Humidity43%
Visibility—
Dew point33°
Fri, 3057° / 38°0Mostly clear
57 °Mostly clear

Pecatonica, Friday, 30 October

Mostly clear. High 57°, low 38°.

Pressure30.06 inHg
Wind15.3 mph S
Humidity43%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3155° / 42°0.1Climate normal
55 °Climate normal

Pecatonica, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.1 in
Chance of precipitation43%
Record high72° (1974)
Record low27° (1988)
Sun, 0154° / 40°0.16Climate normal
54 °Climate normal

Pecatonica, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high54°
Average low40°
Average precipitation0.16 in
Chance of precipitation35%
Record high73° (2000)
Record low18° (2019)
Mon, 0253° / 39°0.1Climate normal
53 °Climate normal

Pecatonica, Monday, 2 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation35%
Record high73° (1961)
Record low21° (1991)
Tue, 0352° / 38°0.06Climate normal
52 °Climate normal

Pecatonica, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (1964)
Record low15° (1991)
Wed, 0452° / 39°0.09Climate normal
52 °Climate normal

Pecatonica, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation25%
Record high70° (2015)
Record low13° (1991)
Thu, 0551° / 38°0.11Climate normal
51 °Climate normal

Pecatonica, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (1978)
Record low18° (1991)
Fri, 0651° / 37°0.09Climate normal
51 °Climate normal

Pecatonica, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1975)
Record low21° (1991)
Sat, 0750° / 36°0.03Climate normal
50 °Climate normal

Pecatonica, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05Climate normal
50 °Climate normal

Pecatonica, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (2020)
Record low13° (1991)
Mon, 0950° / 37°0.11Climate normal
50 °Climate normal

Pecatonica, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (1991)
Tue, 1049° / 35°0.11Climate normal
49 °Climate normal

Pecatonica, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 33°0.06Climate normal
46 °Climate normal

Pecatonica, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1964)
Record low13° (2019)
Thu, 1245° / 32°0.07Climate normal
45 °Climate normal

Pecatonica, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 32°0.04Climate normal
45 °Climate normal

Pecatonica, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (1999)
Record low8° (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 Pecatonica, 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 Pecatonica, 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.