Current Conditions

Norristown, Pennsylvania

70°F21°C
Partly Cloudy

Wind

S 5 mph8 km/h

Humidity

73%

Cloud Cover

90%

As of Tuesday, September 8, 2026 at 11:53 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 8 to 12 mph13 to 19 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 88°F31°CLow 66°F19°CPrecip 0 in0 mmCloud 60%Wind SSW 8 mph13 km/hWednesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 69°F21°C. Breezy from the SSW at 8 to 11 mph14 to 18 km/h. Wednesday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 8 to 12 mph13 to 19 km/h.
Light RainHigh 87°F31°CFeels 91°F33°CLow 75°F24°CPrecip 0.13 in3.2 mm50%Cloud 80%Wind WSW 7 mph12 km/hThursday: Overcast and hot, with a high of 87°F31°C and morning low of 75°F24°C. Breezy from the W at 7 mph11 km/h. 50% chance of light rain throughout the day. Humid. Thursday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the WSW at 8 to 12 mph13 to 19 km/h. 35% chance of light rain throughout the night.
ShowersHigh 82°F28°CLow 66°F19°CPrecip 0.06 in1.6 mm37%Cloud 53%Wind NNW 5 mph8 km/hFriday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Light wind from the NNW around 6 mph9 km/h. Friday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the NNW around 5 mph7 km/h. 37% chance of showers overnight.
Light RainHigh 78°F25°CLow 61°F16°CPrecip 0.19 in4.7 mm60%Cloud 90%Wind SE 6 mph9 km/hSaturday: Overcast and warm, with a high of 78°F25°C and morning low of 63°F17°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 59% chance of light rain throughout the day. Saturday Night: Overcast, with a low around 61°F16°C. Light wind from the ESE around 5 mph8 km/h. 60% chance of light rain in the evening.
Light RainHigh 83°F28°CFeels 86°F30°CLow 69°F21°CPrecip 0.33 in8.4 mm76%Cloud 72%Wind WSW 5 mph8 km/hSunday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Light wind from the WNW around 5 mph8 km/h. 52% chance of light rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the SW around 5 mph8 km/h. 76% chance of light rain throughout the night.
DrizzleHigh 79°F26°CLow 65°F18°CPrecip 0.02 in0.6 mm10%Cloud 38%Wind NNW 6 mph10 km/hMonday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the NNW at 7 mph11 km/h. Monday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle overnight.
Partly CloudyHigh 80°F27°CLow 59°F15°CPrecip 0.01 in0.2 mm4%Cloud 41%Wind SSE 6 mph10 km/hTuesday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. Tuesday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 988°F31°C66°F19°C0 in0 mm· —60%Partly CloudySSW 8 mph13 km/h
ThursdaySep 1087°F31°C
Feels 91°F33°C
75°F24°C0.13 in3.2 mm· 50%80%Light RainWSW 7 mph12 km/h
FridaySep 1182°F28°C66°F19°C0.06 in1.6 mm· 37%53%ShowersNNW 5 mph8 km/h
SaturdaySep 1278°F25°C61°F16°C0.19 in4.7 mm· 60%90%Light RainSE 6 mph9 km/h
SundaySep 1383°F28°C
Feels 86°F30°C
69°F21°C0.33 in8.4 mm· 76%72%Light RainWSW 5 mph8 km/h
MondaySep 1479°F26°C65°F18°C0.02 in0.6 mm· 10%38%DrizzleNNW 6 mph10 km/h
TuesdaySep 1580°F27°C59°F15°C0.01 in0.2 mm· 4%41%Partly CloudySSE 6 mph10 km/h
WednesdaySep 1686°F30°C67°F19°C0.06 in1.5 mm· 20%44%DrizzleSSW 6 mph9 km/h
ThursdaySep 1784°F29°C
Feels 87°F30°C
70°F21°C0.13 in3.2 mm· 24%51%ShowersSSW 6 mph9 km/h
FridaySep 1883°F29°C69°F21°C0.1 in2.5 mm· 20%53%ShowersW 7 mph11 km/h
SaturdaySep 1977°F25°C65°F18°C0.1 in2.5 mm· 17%53%DrizzleNW 6 mph10 km/h
SundaySep 2073°F23°C60°F16°C0.15 in3.8 mm· 22%57%ShowersNNW 6 mph10 km/h
MondaySep 2171°F21°C57°F14°C0.13 in3.4 mm· 21%60%ShowersNNE 6 mph10 km/h
TuesdaySep 2271°F22°C57°F14°C0.16 in4.1 mm· 21%59%ShowersNNE 6 mph10 km/h
WednesdaySep 2371°F21°C56°F13°C0.12 in3.1 mm· 18%58%ShowersNNE 6 mph10 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 40.1215°N, 75.3399°W·Elevation: 48m·Timezone: America/New_York·Population: 34,412