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United States weather

Weather in Erie, Pennsylvania for September 2025

Your guide to Erie weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Fog Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Erie has been nearly identical to the historical average, with a temperature of 20.7 °F (showing only a slight deviation of -0.5 °F).

  • The forecast for the next days in Erie predicts temperatures to be around 22 °F, close to the historical average.

  • In general, the average temperature in Erie at the beginning of September is 21.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.4 °F by the end of September.

    • Rain 🌧️

  • The climate of Erie in September is notably wet, with an average of 12 rainy days, and a total of 69.6 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/16°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Erie Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
22°
2
Partly cloudy
22°
3
Partly cloudy
23°
4
Heavy rain at times
21°
5
Overcast
25°
6
Moderate or heavy rain shower
18°
7
Light rain shower
17°
8
Cloudy
18°
9
Patchy rain possible
22°
10
Sunny
21°
11
Sunny
22°
12
Sunny
22°
13
Sunny
23°
14
Sunny
23°
15
Weather Alert Sunny
22°
16
Partly cloudy
22°
17
Partly cloudy
22°
18
Partly cloudy
24°
19
Sunny
23°
20
Sunny
25°
21
Sunny
27°
22
Patchy rain possible
26°
23
Patchy rain possible
27°
24
Moderate rain
19°
25
Patchy rain possible
20°
26
Patchy rain possible
18°
27
Partly cloudy
19°
28
Sunny
19°
29
Patchy rain possible
21°
30
Overcast
20°

Temperatures trend during September in Erie

See the weather trend as well as the moving average line

September weather in Erie day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 22° /15° 0 mm 6
Sept. 2 Partly cloudy
Partly cloudy
 22° /16° 0 mm 6
Sept. 3 Partly cloudy
Partly cloudy
 23° /16° 0 mm 6
Sept. 4 Heavy rain at times
Heavy rain at times
 21° /15° 8.3 mm 5
Sept. 5 Overcast
Overcast
 25° /10° 0 mm 6
Sept. 6 Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /15° 11.2 mm 4
Sept. 7 Light rain shower
Light rain shower
 17° /15° 5.9 mm 4
Sept. 8 Cloudy
Cloudy
 18° /15° 0 mm 4
Sept. 9 Patchy rain possible
Patchy rain possible
 22° /13° 0.9 mm 6
Sept. 10 Sunny
Sunny
 21° /14° 0 mm 6
Sept. 11 Sunny
Sunny
 22° /15° 0 mm 6
Sept. 12 Sunny
Sunny
 22° /15° 0 mm 5
Sept. 13 Sunny
Sunny
 23° /15° 0 mm 6
Sept. 14 Sunny
Sunny
 23° /16° 0 mm 6
Sept. 15 Sunny
Sunny
 22° /15° 0 mm 1.4
Sept. 16 Partly cloudy
Partly cloudy
 22° /17° 0 mm 1.3
Sept. 17 Partly cloudy
Partly cloudy
 22° /16° 0 mm 1.3
Sept. 18 Partly cloudy
Partly cloudy
 24° /14° 0 mm 1.4
Sept. 19 Sunny
Sunny
 23° /18° 0 mm 0
Sept. 20 Sunny
Sunny
 25° /15° 0 mm 5
Sept. 21 Sunny
Sunny
 27° /18° 0 mm 6
Sept. 22 Patchy rain possible
Patchy rain possible
 26° /18° 1.6 mm 5
Sept. 23 Patchy rain possible
Patchy rain possible
 27° /19° 0.2 mm 5
Sept. 24 Moderate rain
Moderate rain
 19° /16° 10.3 mm 4
Sept. 25 Patchy rain possible
Patchy rain possible
 20° /13° 1 mm 4
Sept. 26 Patchy rain possible
Patchy rain possible
 18° /14° 1.5 mm 4
Sept. 27 Partly cloudy
Partly cloudy
 19° /13° 0 mm 5
Sept. 28 Sunny
Sunny
 19° /15° 0 mm 5
Sept. 29 Patchy rain possible
Patchy rain possible
 21° /19° 1.5 mm 5
Sept. 30 Overcast
Overcast
 20° /17° 0 mm 5
Next
Important Notice
Our weather forecast for Erie in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Erie forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Erie in September - FAQ

What are the expected maximum and minimum temperatures in Erie during September?
During September, expect a variety of temperatures with highs around 22° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Erie during September?
Moderate rainfall is anticipated in Erie during September, with a total of 69.6 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Erie during September?
The average wind speed in Erie during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Erie

Explore the daily rainfall trends and prepare for Eries September weather 💧

UV exposure in Erie during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Erie?

Get accurate weather forecasts for Erie, located at latitude 42.129 and longitude -80.085. Stay updated with localized weather information tailored for Erie.

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