As of 10:30 EDT

Weather in Rochester, IN

74°

Rochester, Sunday, 9 August, 10:30

Partly cloudy. Feels like 75°. High 89°, low 64°.

Pressure30.03 inHg

Wind7.6 mph S

Humidity88%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

Monthly outlook for Rochester, IN: average high 78.9°, average low 61.6°. That is 0.6° below the climate normal for August. Precipitation is expected on 6 days (about 3.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 10 August (92.8°), the coolest 20 August (55.1°).

78.9°/61.6°

Average high / low

−0.6°

Below normal

6 / 5

Wet days / normal

3.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	80.1°	80.1°	+0°
19 August – 28 August	76.9°	80.1°	-1.8°
29 August – 7 September	at normal	78.9°	—

August records over 66 years

95.7°17 August 1988All-time high

43.3°29 August 1986All-time low

Mon, 1093° / 72°

1.27

93 °

Rochester, Monday, 10 August

Heavy rain. High 93°, low 72°.

Pressure29.94 inHg

Wind12.5 mph SW

Humidity71%

Visibility6.2 mi

Dew point73°

Tue, 1186° / 67°

1.08

86 °

Rochester, Tuesday, 11 August

Heavy rain. High 86°, low 67°.

Pressure29.94 inHg

Wind7 mph SW

Humidity81%

Visibility6.2 mi

Dew point73°

Wed, 1281° / 67°

0.43

81 °

Rochester, Wednesday, 12 August

Rain. High 81°, low 67°.

Pressure29.83 inHg

Wind6.1 mph NW

Humidity72%

Visibility6.2 mi

Dew point69°

Thu, 1377° / 62°

0.21

77 °

Rochester, Thursday, 13 August

Light rain. High 77°, low 62°.

Pressure29.94 inHg

Wind8.5 mph N

Humidity67%

Visibility—

Dew point63°

Fri, 1475° / 63°

0.01

75 °

Rochester, Friday, 14 August

Light rain. High 75°, low 63°.

Pressure30.12 inHg

Wind11.2 mph NE

Humidity64%

Visibility—

Dew point60°

Sat, 1573° / 58°

0.01

73 °

Rochester, Saturday, 15 August

Light rain. High 73°, low 58°.

Pressure30.24 inHg

Wind13.3 mph SE

Humidity59%

Visibility—

Dew point56°

Sun, 1679° / 62°

0.17

79 °

Rochester, Sunday, 16 August

Light rain. High 79°, low 62°.

Pressure29.94 inHg

Wind11.5 mph SE

Humidity80%

Visibility—

Dew point69°

Mon, 1773° / 61°

0.01

73 °

Rochester, Monday, 17 August

Light rain. High 73°, low 61°.

Pressure30.09 inHg

Wind9.4 mph N

Humidity70%

Visibility—

Dew point61°

Tue, 1877° / 59°

77 °

Rochester, Tuesday, 18 August

Overcast. High 77°, low 59°.

Pressure29.94 inHg

Wind8.1 mph S

Humidity67%

Visibility—

Dew point61°

Wed, 1977° / 61°

0.02

77 °

Rochester, Wednesday, 19 August

Light rain. High 77°, low 61°.

Pressure29.77 inHg

Wind15.7 mph NW

Humidity65%

Visibility—

Dew point63°

Thu, 2073° / 55°

73 °

Rochester, Thursday, 20 August

Overcast. High 73°, low 55°.

Pressure29.94 inHg

Wind10.5 mph N

Humidity63%

Visibility—

Dew point57°

Fri, 2179° / 58°

0.01

79 °

Rochester, Friday, 21 August

Light rain. High 79°, low 58°.

Pressure29.85 inHg

Wind11.4 mph S

Humidity60%

Visibility—

Dew point61°

Sat, 2280° / 64°

0.12

80 °

Rochester, Saturday, 22 August

Light rain. High 80°, low 64°.

Pressure29.77 inHg

Wind14.7 mph SW

Humidity68%

Visibility—

Dew point67°

Sun, 2374° / 58°

74 °

Rochester, Sunday, 23 August

Clear. High 74°, low 58°.

Pressure30.12 inHg

Wind11.7 mph N

Humidity54%

Visibility—

Dew point54°

Mon, 2477° / 56°

77 °

Rochester, Monday, 24 August

Clear. High 77°, low 56°.

Pressure30.21 inHg

Wind4.9 mph S

Humidity46%

Visibility—

Dew point51°

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

Tue, 2580° / 63°

0.07

80 °

Rochester, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.07 in

Chance of precipitation27%

Record high91° (2003)

Record low51° (2017)

Wed, 2681° / 64°

0.11

81 °

Rochester, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.11 in

Chance of precipitation30%

Record high92° (2020)

Record low52° (2025)

Thu, 2781° / 65°

0.12

81 °

Rochester, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°

Average low65°

Average precipitation0.12 in

Chance of precipitation35%

Record high93° (2024)

Record low51° (2025)

Fri, 2880° / 64°

0.13

80 °

Rochester, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.13 in

Chance of precipitation38%

Record high90° (2022)

Record low47° (1986)

Sat, 2980° / 63°

0.11

80 °

Rochester, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.11 in

Chance of precipitation38%

Record high91° (1991)

Record low43° (1986)

Sun, 3079° / 63°

0.07

79 °

Rochester, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.07 in

Chance of precipitation37%

Record high91° (2024)

Record low47° (1986)

Mon, 3179° / 62°

0.07

79 °

Rochester, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.07 in

Chance of precipitation28%

Record high91° (2012)

Record low47° (2009)

Tue, 0179° / 62°

0.15

79 °

Rochester, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.15 in

Chance of precipitation25%

Record high95° (2011)

Record low47° (1967)

Wed, 0279° / 62°

0.07

79 °

Rochester, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.07 in

Chance of precipitation27%

Record high95° (2011)

Record low47° (1965)

Thu, 0379° / 62°

0.08

79 °

Rochester, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.08 in

Chance of precipitation27%

Record high93° (2011)

Record low47° (1974)

Fri, 0478° / 61°

0.07

78 °

Rochester, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°

Average low61°

Average precipitation0.07 in

Chance of precipitation27%

Record high91° (1999)

Record low47° (1997)

Sat, 0578° / 61°

0.04

78 °

Rochester, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°

Average low61°

Average precipitation0.04 in

Chance of precipitation27%

Record high91° (2007)

Record low47° (1974)

Sun, 0678° / 61°

0.07

78 °

Rochester, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high78°

Average low61°

Average precipitation0.07 in

Chance of precipitation25%

Record high91° (1990)

Record low47° (1962)

Mon, 0778° / 60°

0.12

78 °

Rochester, Monday, 7 September

Climate normal for this date — 60-year average.

Average high78°

Average low60°

Average precipitation0.12 in

Chance of precipitation35%

Record high90° (2002)

Record low45° (1962)

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, IN 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, IN 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.