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As of 05:29 EDT

Weather in Petersburg, MI

60°Current weather

Petersburg, Sunday, 9 August, 05:29

Clear. Feels like 60°. High 88°, low 60°.

Pressure30.03 inHg
Wind5.7 mph NW
Humidity92%
Visibility6.2 mi
Dew point57°
Mon, 1088° / 68°2.15Heavy rain
88 °Heavy rain

Petersburg, Monday, 10 August

Heavy rain. High 88°, low 68°.

Pressure29.91 inHg
Wind13.8 mph SW
Humidity71%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 65°1.31Heavy rain
83 °Heavy rain

Petersburg, Tuesday, 11 August

Heavy rain. High 83°, low 65°.

Pressure29.91 inHg
Wind7.2 mph SE
Humidity58%
Visibility6.2 mi
Dew point66°
Wed, 1284° / 64°0.01Light rain
84 °Light rain

Petersburg, Wednesday, 12 August

Light rain. High 84°, low 64°.

Pressure29.77 inHg
Wind5.1 mph NW
Humidity67%
Visibility6.2 mi
Dew point67°
Thu, 1375° / 60°0Overcast
75 °Overcast

Petersburg, Thursday, 13 August

Overcast. High 75°, low 60°.

Pressure30.00 inHg
Wind10.3 mph NE
Humidity45%
Visibility—
Dew point49°
Fri, 1475° / 57°0Partly cloudy
75 °Partly cloudy

Petersburg, Friday, 14 August

Partly cloudy. High 75°, low 57°.

Pressure30.15 inHg
Wind8.3 mph N
Humidity47%
Visibility—
Dew point49°
Sat, 1572° / 56°0Overcast
72 °Overcast

Petersburg, Saturday, 15 August

Overcast. High 72°, low 56°.

Pressure30.30 inHg
Wind9.1 mph NE
Humidity47%
Visibility—
Dew point48°
Sun, 1674° / 60°0Overcast
74 °Overcast

Petersburg, Sunday, 16 August

Overcast. High 74°, low 60°.

Pressure30.12 inHg
Wind7.9 mph SW
Humidity53%
Visibility—
Dew point53°
Mon, 1783° / 65°0.01Light rain
83 °Light rain

Petersburg, Monday, 17 August

Light rain. High 83°, low 65°.

Pressure30.03 inHg
Wind8.7 mph NW
Humidity53%
Visibility—
Dew point59°
Tue, 1880° / 62°0Light rain
80 °Light rain

Petersburg, Tuesday, 18 August

Light rain. High 80°, low 62°.

Pressure30.03 inHg
Wind10.1 mph NE
Humidity56%
Visibility—
Dew point61°
Wed, 1982° / 64°0.01Light rain
82 °Light rain

Petersburg, Wednesday, 19 August

Light rain. High 82°, low 64°.

Pressure30.00 inHg
Wind8.2 mph S
Humidity56%
Visibility—
Dew point62°
Thu, 2090° / 68°0.02Light rain
90 °Light rain

Petersburg, Thursday, 20 August

Light rain. High 90°, low 68°.

Pressure29.83 inHg
Wind12.9 mph SW
Humidity58%
Visibility—
Dew point67°
Fri, 2196° / 72°0Mostly clear
96 °Mostly clear

Petersburg, Friday, 21 August

Mostly clear. High 96°, low 72°.

Pressure29.85 inHg
Wind9 mph E
Humidity46%
Visibility—
Dew point66°
Sat, 2286° / 66°0Mostly clear
86 °Mostly clear

Petersburg, Saturday, 22 August

Mostly clear. High 86°, low 66°.

Pressure29.94 inHg
Wind9.1 mph SE
Humidity53%
Visibility—
Dew point64°
Sun, 2399° / 73°0.03Light rain
99 °Light rain

Petersburg, Sunday, 23 August

Light rain. High 99°, low 73°.

Pressure29.83 inHg
Wind15.5 mph W
Humidity39%
Visibility—
Dew point66°
Mon, 2474° / 67°0.11Light rain
74 °Light rain

Petersburg, Monday, 24 August

Light rain. High 74°, low 67°.

Pressure30.03 inHg
Wind9.1 mph E
Humidity85%
Visibility—
Dew point69°

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, MI 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, MI 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.