 |
 Current South Williamsport Weather Conditions |
Updated September 12th at 5:54 pm |
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| Overcast |
| Temperature: | 72°F |
Dew Point: | 63°F |
| Barometer: | 30.01 inHg |
Wind: | N 13 Mph |
| Humidity: | 73.3% |
Visibility: | 0M |
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| South Williamsport Weather Forecast Summary |
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Today
Sep 12th
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Sunday
Sep 13th
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Monday
Sep 14th
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Tuesday
Sep 15th
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Wednesday
Sep 16th
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 |
Mostly Cloudy with Showers |
Thundershowers |
Mostly Sunny |
Mostly Sunny |
Mix of Sun and Cloud |
78°F
|
81°F
64°F |
69°F
49°F |
71°F
45°F |
73°F
54°F |
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| South Williamsport Detailed Weather Forecast |
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| Saturday, September 12th, 2026 |
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Evening |
Temperature: 69°F |
| Cloudy with a few showers. |
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| Sunday, September 13th, 2026 |
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Overnight |
Temperature: 65°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 68°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 80°F |
| Sunny with cloudy periods. Chance of a thunderstorm. |
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Evening |
Temperature: 66°F |
| Clear with cloudy periods with a chance of showers. |
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| Monday, September 14th, 2026 |
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Overnight |
Temperature: 60°F |
| A mix of cloudy and clear skies with a chance of showers. |
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Morning |
Temperature: 60°F |
| Sunny with a slight chance of showers. Windy at times. |
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Afternoon |
Temperature: 68°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 52°F |
| Clear. |
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| Tuesday, September 15th, 2026 |
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Overnight |
Temperature: 46°F |
| Mostly clear. |
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Morning |
Temperature: 56°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 70°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 58°F |
| Clear with cloudy periods. |
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| Wednesday, September 16th, 2026 |
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Overnight |
Temperature: 55°F |
| A mix of clear and cloudy skies. |
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Morning |
Temperature: 63°F |
| Cloudy with sunny periods. |
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Afternoon |
Temperature: 72°F |
| Sunny with cloudy periods. |
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Evening |
Temperature: 63°F |
| Clear with cloudy periods. |
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| Thursday, September 17th, 2026 |
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Overnight |
Temperature: 59°F |
| Mostly clear. |
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Morning |
Temperature: 67°F |
| Sunny. |
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Afternoon |
Temperature: 80°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 69°F |
| Mostly cloudy. |
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| Friday, September 18th, 2026 |
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Overnight |
Temperature: 64°F |
| Mostly cloudy with a chance of showers. |
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Morning |
Temperature: 65°F |
| Cloudy with sunny periods with a slight chance of showers. |
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Afternoon |
Temperature: 66°F |
| A mix of cloud and sun with a slight chance of showers. |
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Evening |
Temperature: 63°F |
| A mix of cloudy and clear skies. |
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| Saturday, September 19th, 2026 |
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Overnight |
Temperature: 63°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 62°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 63°F |
| A mix of cloud and sun with a chance of showers. |
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Evening |
Temperature: 62°F |
| A mix of cloudy and clear skies with a chance of showers. |
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| Sunday, September 20th, 2026 |
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Overnight |
Temperature: 62°F |
| A mix of cloudy and clear skies with a slight chance of showers. |
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Morning |
Temperature: 63°F |
| A mix of cloud and sun with a slight chance of showers. |
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Afternoon |
Temperature: 68°F |
| Mostly cloudy. |
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Evening |
Temperature: 61°F |
| Mostly cloudy. |
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