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As of 14:20 EDT

Weather in Portsmouth, OH

64°Current weather

Portsmouth, Saturday, 31 October, 14:20

Clear. Feels like 62°. High 66°, low 47°.

Pressure30.39 inHg
Wind5.7 mph E
Humidity48%
Visibility6.2 mi
Dew point43°
Sun, 0172° / 45°0Overcast
72 °Overcast

Portsmouth, Sunday, 1 November

Overcast. High 72°, low 45°.

Pressure30.39 inHg
Wind3.8 mph SE
Humidity39%
Visibility6.2 mi
Dew point38°
Mon, 0262° / 49°0.08Rain
62 °Rain

Portsmouth, Monday, 2 November

Rain. High 62°, low 49°.

Pressure30.33 inHg
Wind6.3 mph SE
Humidity67%
Visibility6.2 mi
Dew point46°
Tue, 0376° / 52°0Overcast
76 °Overcast

Portsmouth, Tuesday, 3 November

Overcast. High 76°, low 52°.

Pressure30.18 inHg
Wind4.9 mph SE
Humidity53%
Visibility6.2 mi
Dew point51°
Wed, 0472° / 57°0.65Rain
72 °Rain

Portsmouth, Wednesday, 4 November

Rain. High 72°, low 57°.

Pressure29.91 inHg
Wind9.5 mph SE
Humidity60%
Visibility6.2 mi
Dew point56°
Thu, 0565° / 55°0.37Rain
65 °Rain

Portsmouth, Thursday, 5 November

Rain. High 65°, low 55°.

Pressure29.80 inHg
Wind12.1 mph SW
Humidity58%
Visibility—
Dew point49°
Fri, 0657° / 52°1.33Heavy rain
57 °Heavy rain

Portsmouth, Friday, 6 November

Heavy rain. High 57°, low 52°.

Pressure29.68 inHg
Wind9.5 mph NW
Humidity93%
Visibility—
Dew point54°
Sat, 0754° / 49°0Overcast
54 °Overcast

Portsmouth, Saturday, 7 November

Overcast. High 54°, low 49°.

Pressure29.80 inHg
Wind7.3 mph NW
Humidity65%
Visibility—
Dew point42°
Sun, 0858° / 49°0Overcast
58 °Overcast

Portsmouth, Sunday, 8 November

Overcast. High 58°, low 49°.

Pressure29.80 inHg
Wind3 mph NE
Humidity58%
Visibility—
Dew point42°
Mon, 0959° / 48°0Overcast
59 °Overcast

Portsmouth, Monday, 9 November

Overcast. High 59°, low 48°.

Pressure29.85 inHg
Wind6.4 mph N
Humidity61%
Visibility—
Dew point44°
Tue, 1062° / 44°0Mostly clear
62 °Mostly clear

Portsmouth, Tuesday, 10 November

Mostly clear. High 62°, low 44°.

Pressure30.00 inHg
Wind6.7 mph NE
Humidity59%
Visibility—
Dew point45°
Wed, 1160° / 44°0Overcast
60 °Overcast

Portsmouth, Wednesday, 11 November

Overcast. High 60°, low 44°.

Pressure29.94 inHg
Wind3 mph N
Humidity58%
Visibility—
Dew point43°
Thu, 1259° / 48°0.09Light rain
59 °Light rain

Portsmouth, Thursday, 12 November

Light rain. High 59°, low 48°.

Pressure29.85 inHg
Wind10.4 mph N
Humidity63%
Visibility—
Dew point45°
Fri, 1355° / 43°0Light rain
55 °Light rain

Portsmouth, Friday, 13 November

Light rain. High 55°, low 43°.

Pressure30.09 inHg
Wind7.9 mph N
Humidity51%
Visibility—
Dew point36°
Sat, 1460° / 41°0Overcast
60 °Overcast

Portsmouth, Saturday, 14 November

Overcast. High 60°, low 41°.

Pressure29.88 inHg
Wind13.3 mph W
Humidity48%
Visibility—
Dew point37°
Sun, 1552° / 39°0Clear
52 °Clear

Portsmouth, Sunday, 15 November

Clear. High 52°, low 39°.

Pressure30.00 inHg
Wind10.7 mph NW
Humidity43%
Visibility—
Dew point29°

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 Portsmouth, 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 Portsmouth, 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.