As of 02:16 CDT

Weather in Big Rock, IL

52°Current weather

Big Rock, Thursday, 22 October, 02:16

Clear. Feels like 51°. High 74°, low 46°.

Pressure30.21 inHg
Wind3.9 mph W
Humidity86%
Visibility6.2 mi
Dew point47°

Monthly outlook for Big Rock, IL: average high 59.4°, average low 43.2°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (74.1°), the coolest 6 November (31.6°).

59.4°/43.2°
Average high / low
+2°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October63.9°57.3°+3.7°
1 November – 10 November51.9°52.6°-0.4°
11 November – 20 Novemberat normal47.3°—

October records over 66 years

87.6°3 October 2025All-time high
21.9°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Boulder Hill (11 mi).

Fri, 2371° / 46°0Clear
71 °Clear

Big Rock, Friday, 23 October

Clear. High 71°, low 46°.

Pressure30.33 inHg
Wind6.6 mph S
Humidity53%
Visibility6.2 mi
Dew point49°
Sat, 2468° / 48°0Overcast
68 °Overcast

Big Rock, Saturday, 24 October

Overcast. High 68°, low 48°.

Pressure30.39 inHg
Wind7.2 mph S
Humidity61%
Visibility6.2 mi
Dew point50°
Sun, 2571° / 51°0Clear
71 °Clear

Big Rock, Sunday, 25 October

Clear. High 71°, low 51°.

Pressure30.39 inHg
Wind5.7 mph S
Humidity56%
Visibility6.2 mi
Dew point50°
Mon, 2668° / 49°0Overcast
68 °Overcast

Big Rock, Monday, 26 October

Overcast. High 68°, low 49°.

Pressure30.33 inHg
Wind7.4 mph NE
Humidity60%
Visibility—
Dew point49°
Tue, 2763° / 51°0.16Light rain
63 °Light rain

Big Rock, Tuesday, 27 October

Light rain. High 63°, low 51°.

Pressure30.21 inHg
Wind8.8 mph SE
Humidity63%
Visibility—
Dew point49°
Wed, 2851° / 39°0.16Light rain
51 °Light rain

Big Rock, Wednesday, 28 October

Light rain. High 51°, low 39°.

Pressure30.27 inHg
Wind14.6 mph N
Humidity85%
Visibility—
Dew point39°
Thu, 2953° / 36°0Clear
53 °Clear

Big Rock, Thursday, 29 October

Clear. High 53°, low 36°.

Pressure30.33 inHg
Wind6.9 mph NW
Humidity47%
Visibility—
Dew point29°
Fri, 3058° / 39°0Partly cloudy
58 °Partly cloudy

Big Rock, Friday, 30 October

Partly cloudy. High 58°, low 39°.

Pressure30.15 inHg
Wind14.2 mph S
Humidity41%
Visibility—
Dew point31°
Sat, 3162° / 48°0.01Light rain
62 °Light rain

Big Rock, Saturday, 31 October

Light rain. High 62°, low 48°.

Pressure30.00 inHg
Wind18.8 mph SW
Humidity54%
Visibility—
Dew point44°
Sun, 0156° / 53°0.81Rain
56 °Rain

Big Rock, Sunday, 1 November

Rain. High 56°, low 53°.

Pressure29.91 inHg
Wind17.4 mph S
Humidity95%
Visibility—
Dew point52°
Mon, 0255° / 40°0.29Rain
55 °Rain

Big Rock, Monday, 2 November

Rain. High 55°, low 40°.

Pressure30.15 inHg
Wind18.8 mph NW
Humidity51%
Visibility—
Dew point31°
Tue, 0349° / 34°0Overcast
49 °Overcast

Big Rock, Tuesday, 3 November

Overcast. High 49°, low 34°.

Pressure30.27 inHg
Wind15.9 mph W
Humidity45%
Visibility—
Dew point25°
Wed, 0453° / 40°0Overcast
53 °Overcast

Big Rock, Wednesday, 4 November

Overcast. High 53°, low 40°.

Pressure29.77 inHg
Wind21.1 mph SW
Humidity67%
Visibility—
Dew point40°
Thu, 0556° / 39°0.02Light rain
56 °Light rain

Big Rock, Thursday, 5 November

Light rain. High 56°, low 39°.

Pressure29.68 inHg
Wind23.5 mph NW
Humidity57%
Visibility—
Dew point36°
Fri, 0643° / 32°0Overcast
43 °Overcast

Big Rock, Friday, 6 November

Overcast. High 43°, low 32°.

Pressure30.06 inHg
Wind5.5 mph NW
Humidity44%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0752° / 37°0.05Climate normal
52 °Climate normal

Big Rock, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation20%
Record high69° (2020)
Record low16° (1991)
Sun, 0851° / 37°0.06Climate normal
51 °Climate normal

Big Rock, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (2020)
Record low12° (1991)
Mon, 0952° / 38°0.11Climate normal
52 °Climate normal

Big Rock, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (1999)
Record low16° (1991)
Tue, 1050° / 37°0.12Climate normal
50 °Climate normal

Big Rock, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2020)
Record low17° (2017)
Wed, 1148° / 34°0.06Climate normal
48 °Climate normal

Big Rock, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1964)
Record low16° (2019)
Thu, 1247° / 33°0.06Climate normal
47 °Climate normal

Big Rock, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1964)
Record low6° (2019)
Fri, 1347° / 33°0.05Climate normal
47 °Climate normal

Big Rock, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (1999)
Record low2° (2019)
Sat, 1448° / 33°0.07Climate normal
48 °Climate normal

Big Rock, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1971)
Record low13° (1986)
Sun, 1547° / 34°0.09Climate normal
47 °Climate normal

Big Rock, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation27%
Record high69° (2025)
Record low18° (1982)
Mon, 1647° / 33°0.05Climate normal
47 °Climate normal

Big Rock, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation15%
Record high64° (1971)
Record low20° (1997)
Tue, 1748° / 34°0.1Climate normal
48 °Climate normal

Big Rock, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation27%
Record high71° (2016)
Record low15° (2014)
Wed, 1848° / 35°0.13Climate normal
48 °Climate normal

Big Rock, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation28%
Record high68° (1999)
Record low11° (2014)
Thu, 1947° / 34°0.07Climate normal
47 °Climate normal

Big Rock, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation32%
Record high65° (1985)
Record low17° (2014)
Fri, 2046° / 33°0.08Climate normal
46 °Climate normal

Big Rock, Friday, 20 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation32%
Record high63° (2003)
Record low14° (2022)

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 Big Rock, 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 Big Rock, 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.