Norristown, PA Weather & Growing Conditions
Tonight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Saturday Night | 62°F | Mostly Cloudy then Patchy Fog | 5 to 10 mph E | 22% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 10 mph S | 82% |
| Sunday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph NW | 83% |
| Monday | 69°F | Chance Rain Showers | 10 mph NE | 42% |
| Monday Night | 56°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Wednesday | 63°F | Chance Rain Showers | 15 mph NE | 35% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 38% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 36% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 32% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Norristown, PA
Last spring frost
Apr 8
First fall frost
Oct 31
Growing season
203 days
Hardiness zone
7a
Explore more for Norristown, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Norristown, Pa (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.