As of 20:21 EDT

Weather in Harlem, OH

75°

Harlem, Saturday, 8 August, 20:21

Rain. Feels like 77°. High 86°, low 68°.

Pressure29.94 inHg

Wind4 mph SE

Humidity91%

Visibility6.2 mi

Dew point72°

See detailed hourly forecast

Monthly outlook for Harlem, OH: average high 77.3°, average low 61.5°. That is 2.5° below the climate normal for August. Precipitation is expected on 7 days (about 5.6 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 9 August (87.5°), the coolest 23 August (50.4°).

77.3°/61.5°

Average high / low

−2.5°

Below normal

7 / 6

Wet days / normal

5.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	78.2°	81.9°	-2.1°
18 August – 27 August	75.8°	81.6°	-3.3°
28 August – 6 September	at normal	80.3°	—

August records over 66 years

97°20 August 1983All-time high

45.5°29 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Columbus (14 mi).

Sun, 0988° / 66°

88 °

Harlem, Sunday, 9 August

Clear. High 88°, low 66°.

Pressure30.06 inHg

Wind5.5 mph SW

Humidity68%

Visibility6.2 mi

Dew point69°

Mon, 1086° / 68°

0.83

86 °

Harlem, Monday, 10 August

Heavy rain. High 86°, low 68°.

Pressure30.00 inHg

Wind14.6 mph SW

Humidity70%

Visibility6.2 mi

Dew point72°

Tue, 1178° / 65°

3.34

78 °

Harlem, Tuesday, 11 August

Heavy rain. High 78°, low 65°.

Pressure29.97 inHg

Wind18.9 mph SW

Humidity87%

Visibility6.2 mi

Dew point68°

Wed, 1280° / 68°

0.3

80 °

Harlem, Wednesday, 12 August

Rain. High 80°, low 68°.

Pressure29.83 inHg

Wind8.3 mph SW

Humidity92%

Visibility6.2 mi

Dew point72°

Thu, 1374° / 64°

0.02

74 °

Harlem, Thursday, 13 August

Light rain. High 74°, low 64°.

Pressure29.91 inHg

Wind9.3 mph NE

Humidity77%

Visibility—

Dew point65°

Fri, 1470° / 56°

0.02

70 °

Harlem, Friday, 14 August

Light rain. High 70°, low 56°.

Pressure30.09 inHg

Wind12.8 mph N

Humidity68%

Visibility—

Dew point57°

Sat, 1571° / 53°

71 °

Harlem, Saturday, 15 August

Overcast. High 71°, low 53°.

Pressure30.30 inHg

Wind7.2 mph N

Humidity58%

Visibility—

Dew point53°

Sun, 1673° / 54°

73 °

Harlem, Sunday, 16 August

Partly cloudy. High 73°, low 54°.

Pressure30.27 inHg

Wind6.3 mph E

Humidity58%

Visibility—

Dew point55°

Mon, 1775° / 57°

0.01

75 °

Harlem, Monday, 17 August

Light rain. High 75°, low 57°.

Pressure30.09 inHg

Wind6.9 mph SW

Humidity69%

Visibility—

Dew point59°

Tue, 1877° / 66°

0.39

77 °

Harlem, Tuesday, 18 August

Rain. High 77°, low 66°.

Pressure29.97 inHg

Wind8 mph N

Humidity90%

Visibility—

Dew point68°

Wed, 1978° / 60°

78 °

Harlem, Wednesday, 19 August

Partly cloudy. High 78°, low 60°.

Pressure30.00 inHg

Wind6.2 mph NE

Humidity59%

Visibility—

Dew point59°

Thu, 2080° / 64°

0.4

80 °

Harlem, Thursday, 20 August

Rain. High 80°, low 64°.

Pressure29.91 inHg

Wind7.9 mph E

Humidity78%

Visibility—

Dew point67°

Fri, 2175° / 63°

0.03

75 °

Harlem, Friday, 21 August

Light rain. High 75°, low 63°.

Pressure29.88 inHg

Wind11.5 mph N

Humidity74%

Visibility—

Dew point65°

Sat, 2278° / 61°

0.07

78 °

Harlem, Saturday, 22 August

Light rain. High 78°, low 61°.

Pressure29.88 inHg

Wind11.9 mph N

Humidity62%

Visibility—

Dew point62°

Sun, 2367° / 50°

67 °

Harlem, Sunday, 23 August

Clear. High 67°, low 50°.

Pressure30.15 inHg

Wind11.9 mph NE

Humidity59%

Visibility—

Dew point49°

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

Mon, 2481° / 63°

0.05

81 °

Harlem, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°

Average low63°

Average precipitation0.05 in

Chance of precipitation25%

Record high94° (2007)

Record low52° (1971)

Tue, 2582° / 64°

0.06

82 °

Harlem, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°

Average low64°

Average precipitation0.06 in

Chance of precipitation30%

Record high91° (2006)

Record low53° (1984)

Wed, 2682° / 64°

0.11

82 °

Harlem, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°

Average low64°

Average precipitation0.11 in

Chance of precipitation32%

Record high92° (2024)

Record low53° (2017)

Thu, 2782° / 65°

0.06

82 °

Harlem, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.06 in

Chance of precipitation28%

Record high93° (2024)

Record low53° (2025)

Fri, 2882° / 65°

0.11

82 °

Harlem, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.11 in

Chance of precipitation33%

Record high92° (2024)

Record low51° (1968)

Sat, 2981° / 64°

0.16

81 °

Harlem, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.16 in

Chance of precipitation35%

Record high92° (1991)

Record low46° (1965)

Sun, 3081° / 64°

0.16

81 °

Harlem, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.16 in

Chance of precipitation33%

Record high95° (2024)

Record low48° (1986)

Mon, 3180° / 63°

0.09

80 °

Harlem, Monday, 31 August

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.09 in

Chance of precipitation33%

Record high93° (2012)

Record low51° (2009)

Tue, 0180° / 63°

0.11

80 °

Harlem, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.11 in

Chance of precipitation28%

Record high92° (2010)

Record low50° (1967)

Wed, 0281° / 63°

0.08

81 °

Harlem, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high81°

Average low63°

Average precipitation0.08 in

Chance of precipitation32%

Record high93° (2011)

Record low49° (1967)

Thu, 0380° / 63°

0.11

80 °

Harlem, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.11 in

Chance of precipitation28%

Record high94° (2011)

Record low50° (1967)

Fri, 0480° / 62°

0.06

80 °

Harlem, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°

Average low62°

Average precipitation0.06 in

Chance of precipitation25%

Record high92° (2008)

Record low47° (1997)

Sat, 0579° / 61°

0.08

79 °

Harlem, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high79°

Average low61°

Average precipitation0.08 in

Chance of precipitation27%

Record high91° (2023)

Record low49° (1997)

Sun, 0679° / 61°

0.03

79 °

Harlem, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°

Average low61°

Average precipitation0.03 in

Chance of precipitation20%

Record high94° (2007)

Record low46° (1988)

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 Harlem, OH 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 Harlem, OH 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.