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Weather in Petersburg, United States 🇺🇸

Current Weather in Petersburg

Clear
23°C
Feels like 22°C. Clear.
🌬️ 9 km/h S
💧 54% Humidity
🧭 1024 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 13°C
🌅 Sunrise: 06:46 AM
🌇 Sunset: 07:28 PM
Map Overlays:

As of now, Petersburg is 23°C and clear, feeling like 22°C. Relative humidity is 54%, with winds around 9 km/h, and the UV index is 0 (low). Looking ahead, Petersburg should sit between roughly 14°C and 35°C over the coming days.

Hourly Forecast for Petersburg

00:00
Cloudy
22°
10%
01:00
Overcast
21°
16%
02:00
Overcast
20°
20%
03:00
Overcast
20°
16%
04:00
Overcast
20°
19%
05:00
Overcast
19°
20%
06:00
Overcast
17°
26%
07:00
Overcast
17°
27%
08:00
Partly Cloudy
19°
16%
09:00
Sunny
22°
6%
10:00
Partly Cloudy
25°
7%
11:00
Cloudy
27°
7%
12:00
Sunny
29°
2%
13:00
Sunny
30°
1%
14:00
Partly Cloudy
31°
2%
15:00
Sunny
32°
1%
16:00
Partly Cloudy
32°
2%
17:00
Overcast
32°
9%
18:00
Overcast
30°
10%
19:00
Sunny
26°
3%
20:00
Clear
24°
2%
21:00
Clear
24°
2%
22:00
Clear
24°
2%
23:00
Clear
23°
4%

14-Day Forecast for Petersburg

Tue, Sep 08
Sunny Sunny
34° / 14°
Wed, Sep 09
Overcast Overcast
32° / 17°
Thu, Sep 10
Sunny Sunny
35° / 20°
Fri, Sep 11
Partly Cloudy Partly Cloudy
32° / 22°
Sat, Sep 12
Light rain shower Light rain shower
28° / 21°
Sun, Sep 13
Patchy rain nearby Patchy rain nearby
29° / 21°
Mon, Sep 14
Fog Fog
33° / 21°
Tue, Sep 15
Sunny Sunny
35° / 23°
Wed, Sep 16
Sunny Sunny
37° / 24°
Thu, Sep 17
Sunny Sunny
30° / 21°
Fri, Sep 18
Sunny Sunny
32° / 17°
Sat, Sep 19
Sunny Sunny
32° / 15°
Sun, Sep 20
Overcast Overcast
18° / 13°
Mon, Sep 21
Overcast Overcast
16° / 11°

Additional Forecasts for Petersburg

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 163.0 μg/m³
O₃ (Ozone) 72.0 μg/m³
NO₂ (Nitrogen Dioxide) 6.7 μg/m³
SO₂ (Sulphur Dioxide) 0.9 μg/m³
PM2.5 (Fine particles) 6.4 μg/m³
PM10 (Coarse particles) 7.5 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Best Time to Be Outside in Petersburg Today

The most comfortable window in Petersburg today looks like 08:00 to 11:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Petersburg

What is the temperature in Petersburg right now?

The current temperature in Petersburg is 23°C (73°F), clear (feels like 22°C).

What's the weather like in Petersburg right now?

Current weather in Petersburg: Clear, humidity 54%, wind 9 km/h S.

What is today's forecast for Petersburg?

Today in Petersburg: high 34°C, low 14°C, sunny. Chance of rain: 5%.

What is the 7-day weather forecast for Petersburg?

Daily highs and lows for Petersburg:

  • 2026-09-08: 34°C / 14°C
  • 2026-09-09: 32°C / 17°C
  • 2026-09-10: 35°C / 20°C
  • 2026-09-11: 32°C / 22°C
  • 2026-09-12: 28°C / 21°C
  • 2026-09-13: 29°C / 21°C
  • 2026-09-14: 33°C / 21°C
Is it going to rain in Petersburg today?

There is a 5% chance of rain in Petersburg today.

What is the wind speed in Petersburg right now?

Wind in Petersburg is currently 9 km/h (6 mph) from the S.

What is the UV index in Petersburg right now?

The UV index in Petersburg is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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