Williamsport, OH Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Williamsport, OH in one place.
A slight chance of rain showers between 1pm and 2pm. Mostly cloudy, with a high near 73. East wind around 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Williamsport, OH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 2:58 PM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Williamsport, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 2:58 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamsport
This Afternoon looks like the warmest upcoming period in Williamsport at 73 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 17 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 2:58 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and 9pm, then a slight chance of showers and thunderstorms between 9pm and 1am. Partly cloudy, with a low around 66. South wind 5 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Rain showers likely between 7am and 4pm. Mostly cloudy. High near 67, with temperatures falling to around 57 in the afternoon. West wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 2am. Mostly cloudy, with a low around 41. Northwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 54. North wind 10 to 16 mph, with gusts as high as 28 mph.
Areas of frost after 3am. Clear, with a low around 34.
Areas of frost before 9am. Sunny, with a high near 60.
Clear, with a low around 37.
Sunny, with a high near 66.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 67.
Mostly clear, with a low around 41.
Sunny, with a high near 68.
Mostly clear, with a low around 42.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Slight Chance Rain Showers
|
73°F |
5 mph
E
|
|
Tonight
Oct 15
|
Slight Chance Showers And Thunderstorms
|
66°F |
5 to 15 mph
S
|
|
Friday
Oct 16
|
Rain Showers Likely
|
67°F |
17 mph
W
|
|
Friday Night
Oct 16
|
Chance Rain Showers
|
41°F |
17 mph
NW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
54°F |
10 to 16 mph
N
|
|
Saturday Night
Oct 17
|
Clear then Areas Of Frost
|
34°F |
1 to 8 mph
NE
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
60°F |
1 to 6 mph
E
|
|
Sunday Night
Oct 18
|
Clear
|
37°F |
2 to 6 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
66°F |
5 mph
SW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
41°F |
3 mph
NE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
67°F |
0 to 3 mph
NE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
41°F |
3 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
68°F |
3 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
42°F |
3 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamsport.
