Casselman, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselman, a borough in Somerset County, Pennsylvania.
This Afternoon
73°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 73. Southeast wind around 6 mph. Chance of precipitation is 20%.
7-day forecast for Casselman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Slight Chance Rain Showers | 6 mph SE | 15% |
| Tonight | 61°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 55% |
| Sunday | 75°F | Showers And Thunderstorms | 5 to 8 mph SW | 82% |
| Sunday Night | 54°F | Showers And Thunderstorms Likely | 2 to 6 mph N | 74% |
| Monday | 65°F | Chance Rain Showers | 7 mph E | 48% |
| Monday Night | 51°F | Showers And Thunderstorms | 7 to 10 mph E | 79% |
| Tuesday | 60°F | Showers And Thunderstorms | 13 mph E | 79% |
| Tuesday Night | 48°F | Showers And Thunderstorms Likely | 14 to 17 mph E | 68% |
| Wednesday | 54°F | Rain Showers Likely | 14 to 17 mph SE | 62% |
| Wednesday Night | 47°F | Chance Rain Showers | 13 to 16 mph E | 40% |
| Thursday | 58°F | Chance Rain Showers | 8 to 13 mph E | 40% |
| Thursday Night | 46°F | Slight Chance Rain Showers | 3 to 8 mph E | 23% |
| Friday | 63°F | Slight Chance Rain Showers | 3 to 7 mph NE | 18% |
| Friday Night | 46°F | Slight Chance Rain Showers | 2 to 7 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov) for Casselman (39.885, -79.211). Updated through the day.
Growing snapshot for Casselman
Last spring frost
May 2
First fall frost
Oct 17
Growing season
168 days
Hardiness zone
6a
More local growing data for Casselman: nearby ZIP 15557 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Hidden Valley, Pa (9.1 mi from Casselman). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.