As of 04:30 CDT

Weather in Rochester, IL

55°

Rochester, Tuesday, 27 October, 04:30

Clear. Feels like 54°. High 73°, low 53°.

Pressure30.24 inHg

Wind0 mph N

Humidity78%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Rochester, IL: average high 63.2°, average low 51°. That is 3.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 28 October (77.1°), the coolest 7 November (37.3°).

63.2°/51°

Average high / low

+3.4°

Above normal

2 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	66.3°	58.4°	+4.4°
6 November – 15 November	58°	53.2°	+2.7°
16 November – 25 November	at normal	49.8°	—

October records over 66 years

89.4°7 October 2007All-time high

24.8°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Springfield (6 mi).

Wed, 2877° / 53°

77 °

Rochester, Wednesday, 28 October

Overcast. High 77°, low 53°.

Pressure30.18 inHg

Wind8 mph S

Humidity49%

Visibility6.2 mi

Dew point52°

Thu, 2976° / 58°

76 °

Rochester, Thursday, 29 October

Clear. High 76°, low 58°.

Pressure30.12 inHg

Wind8.5 mph SW

Humidity54%

Visibility6.2 mi

Dew point56°

Fri, 3072° / 52°

72 °

Rochester, Friday, 30 October

Overcast. High 72°, low 52°.

Pressure30.24 inHg

Wind6.7 mph E

Humidity57%

Visibility6.2 mi

Dew point52°

Sat, 3171° / 60°

71 °

Rochester, Saturday, 31 October

Overcast. High 71°, low 60°.

Pressure30.21 inHg

Wind6.4 mph E

Humidity68%

Visibility—

Dew point56°

Sun, 0172° / 58°

72 °

Rochester, Sunday, 1 November

Overcast. High 72°, low 58°.

Pressure30.09 inHg

Wind9.9 mph SE

Humidity54%

Visibility—

Dew point53°

Mon, 0256° / 52°

56 °

Rochester, Monday, 2 November

Overcast. High 56°, low 52°.

Pressure29.91 inHg

Wind9.8 mph N

Humidity79%

Visibility—

Dew point49°

Tue, 0356° / 55°

56 °

Rochester, Tuesday, 3 November

Overcast. High 56°, low 55°.

Pressure30.09 inHg

Wind14.5 mph NE

Humidity82%

Visibility—

Dew point50°

Wed, 0454° / 52°

0.64

54 °

Rochester, Wednesday, 4 November

Rain. High 54°, low 52°.

Pressure29.91 inHg

Wind18 mph NE

Humidity85%

Visibility—

Dew point47°

Thu, 0555° / 48°

0.17

55 °

Rochester, Thursday, 5 November

Light rain. High 55°, low 48°.

Pressure29.83 inHg

Wind14 mph NE

Humidity80%

Visibility—

Dew point48°

Fri, 0653° / 41°

53 °

Rochester, Friday, 6 November

Overcast. High 53°, low 41°.

Pressure30.12 inHg

Wind13.3 mph N

Humidity54%

Visibility—

Dew point35°

Sat, 0751° / 37°

51 °

Rochester, Saturday, 7 November

Overcast. High 51°, low 37°.

Pressure30.21 inHg

Wind8.8 mph S

Humidity50%

Visibility—

Dew point31°

Sun, 0860° / 42°

60 °

Rochester, Sunday, 8 November

Overcast. High 60°, low 42°.

Pressure30.12 inHg

Wind10.4 mph S

Humidity45%

Visibility—

Dew point34°

Mon, 0964° / 48°

0.01

64 °

Rochester, Monday, 9 November

Light rain. High 64°, low 48°.

Pressure30.09 inHg

Wind15.6 mph S

Humidity58%

Visibility—

Dew point47°

Tue, 1062° / 56°

0.04

62 °

Rochester, Tuesday, 10 November

Light rain. High 62°, low 56°.

Pressure29.94 inHg

Wind11.5 mph S

Humidity80%

Visibility—

Dew point55°

Wed, 1158° / 51°

58 °

Rochester, Wednesday, 11 November

Overcast. High 58°, low 51°.

Pressure29.88 inHg

Wind14.4 mph NW

Humidity52%

Visibility—

Dew point40°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 1250° / 35°

0.06

50 °

Rochester, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.06 in

Chance of precipitation18%

Record high72° (2010)

Record low10° (2019)

Fri, 1351° / 36°

0.06

51 °

Rochester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.06 in

Chance of precipitation17%

Record high73° (1999)

Record low9° (1986)

Sat, 1452° / 37°

0.07

52 °

Rochester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.07 in

Chance of precipitation28%

Record high74° (1971)

Record low13° (1986)

Sun, 1551° / 37°

0.1

51 °

Rochester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.1 in

Chance of precipitation28%

Record high73° (1971)

Record low19° (2019)

Mon, 1651° / 36°

0.08

51 °

Rochester, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.08 in

Chance of precipitation22%

Record high71° (1971)

Record low22° (1997)

Tue, 1752° / 37°

0.12

52 °

Rochester, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.12 in

Chance of precipitation27%

Record high74° (2016)

Record low19° (2005)

Wed, 1852° / 38°

0.18

52 °

Rochester, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.18 in

Chance of precipitation30%

Record high69° (1999)

Record low14° (2014)

Thu, 1951° / 37°

0.08

51 °

Rochester, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.08 in

Chance of precipitation22%

Record high71° (1979)

Record low20° (2014)

Fri, 2051° / 36°

0.11

51 °

Rochester, Friday, 20 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.11 in

Chance of precipitation30%

Record high70° (2007)

Record low18° (2022)

Sat, 2149° / 35°

0.1

49 °

Rochester, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.1 in

Chance of precipitation28%

Record high69° (1990)

Record low12° (1964)

Sun, 2249° / 34°

0.08

49 °

Rochester, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.08 in

Chance of precipitation28%

Record high72° (2010)

Record low15° (1964)

Mon, 2349° / 34°

0.08

49 °

Rochester, Monday, 23 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.08 in

Chance of precipitation25%

Record high66° (2003)

Record low13° (1970)

Tue, 2447° / 33°

0.11

47 °

Rochester, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.11 in

Chance of precipitation25%

Record high67° (1966)

Record low13° (1970)

Wed, 2547° / 33°

0.09

47 °

Rochester, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.09 in

Chance of precipitation37%

Record high65° (2006)

Record low13° (1977)

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 Rochester, 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 Rochester, 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.