As of 17:21 CDT

Weather in Rochester, IL

73°

Rochester, Saturday, 24 October, 17:21

Clear. Feels like 72°. High 73°, low 48°.

Pressure30.33 inHg

Wind8.1 mph SE

Humidity43%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Monthly outlook for Rochester, IL: average high 67.4°, average low 51.6°. That is 5.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 30 October (77°), the coolest 2 November (40.2°).

67.4°/51.6°

Average high / low

+5.1°

Above normal

4 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
24 October – 2 November	71.9°	59.8°	+6.7°
3 November – 12 November	59.9°	54.6°	+3°
13 November – 22 November	at normal	50.8°	—

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).

Sun, 2575° / 49°

75 °

Rochester, Sunday, 25 October

Overcast. High 75°, low 49°.

Pressure30.42 inHg

Wind3.6 mph S

Humidity55%

Visibility6.2 mi

Dew point52°

Mon, 2673° / 51°

73 °

Rochester, Monday, 26 October

Overcast. High 73°, low 51°.

Pressure30.33 inHg

Wind2 mph S

Humidity58%

Visibility6.2 mi

Dew point54°

Tue, 2772° / 55°

72 °

Rochester, Tuesday, 27 October

Overcast. High 72°, low 55°.

Pressure30.24 inHg

Wind7.8 mph S

Humidity53%

Visibility6.2 mi

Dew point51°

Wed, 2875° / 54°

75 °

Rochester, Wednesday, 28 October

Clear. High 75°, low 54°.

Pressure30.18 inHg

Wind8.7 mph S

Humidity55%

Visibility6.2 mi

Dew point53°

Thu, 2977° / 58°

77 °

Rochester, Thursday, 29 October

Mostly clear. High 77°, low 58°.

Pressure30.18 inHg

Wind8.9 mph S

Humidity51%

Visibility—

Dew point53°

Fri, 3077° / 58°

77 °

Rochester, Friday, 30 October

Overcast. High 77°, low 58°.

Pressure30.15 inHg

Wind10.7 mph S

Humidity39%

Visibility—

Dew point48°

Sat, 3172° / 62°

0.05

72 °

Rochester, Saturday, 31 October

Light rain. High 72°, low 62°.

Pressure30.03 inHg

Wind21.3 mph S

Humidity38%

Visibility—

Dew point43°

Sun, 0174° / 59°

0.28

74 °

Rochester, Sunday, 1 November

Rain. High 74°, low 59°.

Pressure29.74 inHg

Wind17.5 mph S

Humidity57%

Visibility—

Dew point56°

Mon, 0251° / 40°

0.44

51 °

Rochester, Monday, 2 November

Rain. High 51°, low 40°.

Pressure29.62 inHg

Wind20.5 mph W

Humidity95%

Visibility—

Dew point40°

Tue, 0354° / 51°

0.09

54 °

Rochester, Tuesday, 3 November

Light rain. High 54°, low 51°.

Pressure29.62 inHg

Wind20.7 mph NW

Humidity85%

Visibility—

Dew point49°

Wed, 0454° / 50°

0.01

54 °

Rochester, Wednesday, 4 November

Light rain. High 54°, low 50°.

Pressure29.74 inHg

Wind12.1 mph N

Humidity75%

Visibility—

Dew point43°

Thu, 0559° / 50°

59 °

Rochester, Thursday, 5 November

Overcast. High 59°, low 50°.

Pressure30.00 inHg

Wind6.1 mph E

Humidity58%

Visibility—

Dew point43°

Fri, 0661° / 46°

61 °

Rochester, Friday, 6 November

Overcast. High 61°, low 46°.

Pressure30.18 inHg

Wind6.2 mph N

Humidity53%

Visibility—

Dew point40°

Sat, 0763° / 46°

63 °

Rochester, Saturday, 7 November

Clear. High 63°, low 46°.

Pressure30.27 inHg

Wind5.3 mph N

Humidity45%

Visibility—

Dew point38°

Sun, 0868° / 48°

68 °

Rochester, Sunday, 8 November

Overcast. High 68°, low 48°.

Pressure30.15 inHg

Wind11 mph SW

Humidity41%

Visibility—

Dew point39°

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

Mon, 0956° / 41°

0.11

56 °

Rochester, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°

Average low41°

Average precipitation0.11 in

Chance of precipitation33%

Record high73° (2020)

Record low15° (1991)

Tue, 1054° / 39°

0.15

54 °

Rochester, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.15 in

Chance of precipitation30%

Record high73° (2020)

Record low19° (2018)

Wed, 1152° / 36°

0.09

52 °

Rochester, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.09 in

Chance of precipitation32%

Record high74° (1964)

Record low19° (2019)

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)

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.