As of 04:15 EDT

Weather in Mount Vernon, OH

64°

Mount Vernon, Tuesday, 13 October, 04:15

Partly cloudy. Feels like 65°. High 80°, low 64°.

Pressure29.91 inHg

Wind4.6 mph SW

Humidity97%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

Wed, 1474° / 58°

0.02

74 °

Mount Vernon, Wednesday, 14 October

Light rain. High 74°, low 58°.

Pressure30.00 inHg

Wind9.6 mph NW

Humidity78%

Visibility6.2 mi

Dew point67°

Thu, 1566° / 52°

0.26

66 °

Mount Vernon, Thursday, 15 October

Heavy rain. High 66°, low 52°.

Pressure30.18 inHg

Wind7 mph E

Humidity71%

Visibility6.2 mi

Dew point49°

Fri, 1669° / 49°

0.54

69 °

Mount Vernon, Friday, 16 October

Heavy rain. High 69°, low 49°.

Pressure29.85 inHg

Wind15.6 mph NW

Humidity84%

Visibility6.2 mi

Dew point51°

Sat, 1752° / 39°

52 °

Mount Vernon, Saturday, 17 October

Clear. High 52°, low 39°.

Pressure30.45 inHg

Wind14.8 mph NW

Humidity49%

Visibility—

Dew point31°

Sun, 1859° / 39°

59 °

Mount Vernon, Sunday, 18 October

Partly cloudy. High 59°, low 39°.

Pressure30.39 inHg

Wind9.7 mph S

Humidity39%

Visibility—

Dew point31°

Mon, 1965° / 42°

65 °

Mount Vernon, Monday, 19 October

Overcast. High 65°, low 42°.

Pressure30.33 inHg

Wind9 mph SW

Humidity41%

Visibility—

Dew point38°

Tue, 2066° / 51°

66 °

Mount Vernon, Tuesday, 20 October

Overcast. High 66°, low 51°.

Pressure30.27 inHg

Wind5.4 mph SE

Humidity45%

Visibility—

Dew point42°

Wed, 2169° / 47°

69 °

Mount Vernon, Wednesday, 21 October

Clear. High 69°, low 47°.

Pressure30.27 inHg

Wind5.7 mph E

Humidity37%

Visibility—

Dew point39°

Thu, 2272° / 48°

72 °

Mount Vernon, Thursday, 22 October

Clear. High 72°, low 48°.

Pressure30.24 inHg

Wind11.7 mph S

Humidity55%

Visibility—

Dew point52°

Fri, 2372° / 54°

0.14

72 °

Mount Vernon, Friday, 23 October

Light rain. High 72°, low 54°.

Pressure30.09 inHg

Wind20.6 mph SW

Humidity53%

Visibility—

Dew point52°

Sat, 2463° / 47°

0.01

63 °

Mount Vernon, Saturday, 24 October

Light rain. High 63°, low 47°.

Pressure30.24 inHg

Wind10.5 mph NW

Humidity40%

Visibility—

Dew point37°

Sun, 2551° / 40°

0.16

51 °

Mount Vernon, Sunday, 25 October

Light rain. High 51°, low 40°.

Pressure30.24 inHg

Wind7.5 mph N

Humidity70%

Visibility—

Dew point40°

Mon, 2650° / 37°

50 °

Mount Vernon, Monday, 26 October

Overcast. High 50°, low 37°.

Pressure30.09 inHg

Wind8.9 mph NW

Humidity47%

Visibility—

Dew point29°

Tue, 2752° / 39°

0.1

52 °

Mount Vernon, Tuesday, 27 October

Light rain. High 52°, low 39°.

Pressure29.62 inHg

Wind15.7 mph W

Humidity61%

Visibility—

Dew point37°

Wed, 2850° / 42°

0.18

50 °

Mount Vernon, Wednesday, 28 October

Rain. High 50°, low 42°.

Pressure29.65 inHg

Wind17.4 mph NW

Humidity63%

Visibility—

Dew point36°

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 Mount Vernon, 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 Mount Vernon, 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.