Casselman, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselman, a borough in Somerset County, Pennsylvania.
This Afternoon
74°F
Partly Sunny
Partly sunny, with a high near 74. South wind around 9 mph.
7-day forecast for Casselman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Partly Sunny | 9 mph S | 1% |
| Tonight | 59°F | Rain Showers | 8 mph S | 99% |
| Thursday | 67°F | Rain Showers Likely then Partly Sunny | 6 to 10 mph SW | 60% |
| Thursday Night | 48°F | Mostly Cloudy | 6 mph SW | 0% |
| Friday | 61°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph W | 23% |
| Friday Night | 37°F | Chance Rain Showers | 3 to 7 mph W | 40% |
| Saturday | 46°F | Rain Showers Likely | 8 to 13 mph W | 56% |
| Saturday Night | 33°F | Rain Showers Likely | 13 mph W | 56% |
| Sunday | 51°F | Slight Chance Rain Showers then Partly Sunny | 15 mph W | 18% |
| Sunday Night | 32°F | Partly Cloudy | 13 mph W | 8% |
| Monday | 53°F | Mostly Sunny | 12 to 17 mph W | 8% |
| Monday Night | 35°F | Mostly Clear | 12 mph W | 5% |
| Tuesday | 59°F | Sunny | 12 to 15 mph W | 1% |
| Tuesday Night | 35°F | Mostly Clear | 5 to 9 mph W | 3% |
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 Nov 5, 2026.