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As of 03:03 EDT

Weather in Petersburg, MD

79°Current weather

Petersburg, Sunday, 9 August, 03:03

Overcast. Feels like 79°. High 90°, low 77°.

Pressure29.97 inHg
Wind2 mph SW
Humidity87%
Visibility6.2 mi
Dew point74°
Mon, 1094° / 76°0Light rain
94 °Light rain

Petersburg, Monday, 10 August

Light rain. High 94°, low 76°.

Pressure30.00 inHg
Wind5.6 mph SW
Humidity44%
Visibility6.2 mi
Dew point68°
Tue, 1190° / 74°0Partly cloudy
90 °Partly cloudy

Petersburg, Tuesday, 11 August

Partly cloudy. High 90°, low 74°.

Pressure29.91 inHg
Wind13 mph NW
Humidity54%
Visibility6.2 mi
Dew point66°
Wed, 1288° / 72°0Overcast
88 °Overcast

Petersburg, Wednesday, 12 August

Overcast. High 88°, low 72°.

Pressure29.80 inHg
Wind12 mph W
Humidity49%
Visibility6.2 mi
Dew point66°
Thu, 1387° / 72°0.21Rain
87 °Rain

Petersburg, Thursday, 13 August

Rain. High 87°, low 72°.

Pressure29.80 inHg
Wind15 mph NW
Humidity45%
Visibility—
Dew point61°
Fri, 1478° / 61°0Overcast
78 °Overcast

Petersburg, Friday, 14 August

Overcast. High 78°, low 61°.

Pressure30.06 inHg
Wind9.5 mph N
Humidity40%
Visibility—
Dew point50°
Sat, 1577° / 59°0Overcast
77 °Overcast

Petersburg, Saturday, 15 August

Overcast. High 77°, low 59°.

Pressure30.15 inHg
Wind13.6 mph NW
Humidity37%
Visibility—
Dew point47°
Sun, 1681° / 55°0Partly cloudy
81 °Partly cloudy

Petersburg, Sunday, 16 August

Partly cloudy. High 81°, low 55°.

Pressure30.15 inHg
Wind7.2 mph NW
Humidity30%
Visibility—
Dew point44°
Mon, 1771° / 65°0.16Light rain
71 °Light rain

Petersburg, Monday, 17 August

Light rain. High 71°, low 65°.

Pressure30.00 inHg
Wind5.8 mph SE
Humidity88%
Visibility—
Dew point66°
Tue, 1881° / 66°0.07Light rain
81 °Light rain

Petersburg, Tuesday, 18 August

Light rain. High 81°, low 66°.

Pressure30.00 inHg
Wind8.7 mph E
Humidity66%
Visibility—
Dew point66°
Wed, 1987° / 65°0Clear
87 °Clear

Petersburg, Wednesday, 19 August

Clear. High 87°, low 65°.

Pressure30.06 inHg
Wind9.9 mph E
Humidity37%
Visibility—
Dew point55°
Thu, 2092° / 66°0Clear
92 °Clear

Petersburg, Thursday, 20 August

Clear. High 92°, low 66°.

Pressure30.00 inHg
Wind7.5 mph S
Humidity36%
Visibility—
Dew point58°
Fri, 2194° / 70°0.09Light rain
94 °Light rain

Petersburg, Friday, 21 August

Light rain. High 94°, low 70°.

Pressure29.88 inHg
Wind13.6 mph S
Humidity42%
Visibility—
Dew point66°
Sat, 22100° / 77°0.02Light rain
100 °Light rain

Petersburg, Saturday, 22 August

Light rain. High 100°, low 77°.

Pressure29.85 inHg
Wind10.5 mph S
Humidity46%
Visibility—
Dew point71°
Sun, 23101° / 75°0Clear
101 °Clear

Petersburg, Sunday, 23 August

Clear. High 101°, low 75°.

Pressure29.91 inHg
Wind8.5 mph S
Humidity28%
Visibility—
Dew point59°
Mon, 24102° / 72°0.05Light rain
102 °Light rain

Petersburg, Monday, 24 August

Light rain. High 102°, low 72°.

Pressure29.94 inHg
Wind17.7 mph NW
Humidity34%
Visibility—
Dew point66°

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 Petersburg, MD 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 Petersburg, MD 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.