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WeatherLive › Pennsylvania › Norristown

Norristown, PA Weather (19401)

ZIP codes: 19401 · 19404
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherNorristown · 9:23 AM EDT
82° | 60°
68°F
Feels like 70°
Sunny
WindNW 3 mph · Gusts 4 mph
Precip9% · –
Humidity80% · Dew point 62°
UV index8 High
Air Quality34 Good
Pressure30.12 inHg
Visibility6 mi
Sunrise / Sunset6:23 AM · 7:42 PM · 13h 19m

Weather map — Norristown

Full radar →
Now
68°
11%
3 mph
10:00
72°
7%
3 mph
11:00
75°
5%
2 mph
12:00
79°
4%
3 mph
13:00
80°
3%
5 mph
14:00
81°
2%
6 mph
15:00
82°
10%
6 mph
16:00
82°
10%
7 mph
17:00
81°
6%
8 mph
18:00
80°
12%
6 mph
19:00
77°
9%
2 mph
20:00
75°
15%
1 mph
21:00
74°
16%
5 mph
22:00
73°
14%
6 mph
23:00
72°
17%
6 mph
00:00
71°
19%
6 mph
01:00
71°
21%
6 mph
02:00
70°
20%
6 mph
03:00
71°
19%
7 mph
04:00
70°
20%
6 mph
05:00
70°
21%
7 mph
06:00
71°
22%
8 mph
07:00
70°
0.03 in
8 mph
08:00
71°
30%
8 mph

Today · Wed 8/26

High 82°
9% / –

Sunny. Winds W at 8 mph.

Tonight · Wed 8/26

Low 70°
16% / –

Mostly cloudy. Winds S at 5 mph.

Tomorrow · Thu 8/27

82° | 70°
86% / 0.43 in

Mostly cloudy. Winds S at 10 mph.

7-day trend

Norristown · temperature + precipitation

10-day forecast

Updated 9:23 AM

Details & indices

Wind
3 mph NW
Gusts 4 mph
Humidity
80%
Dew point 62°
Pressure
30.12 inHg
Rising
UV index
8 — High
High today
Air Quality
Good
AQI 34 · US EPA
Allergy
Very high
Grass
Visibility
6 mi
Clear view
Allergy — Norristown

🌿 Conditions right now

View all →
Birch
None
Grass
High
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Moderate

Sun & moon

Sunrise6:23 AM
Sunset7:42 PM
Length of day13h 19m
Moonrise7:05 PM
Moonset4:35 AM
Moon phase🌕 Full Moon · 97%
Next full moonAug 28 Sturgeon Moon
Latitude40.1215°N
Longitude-75.3399°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Philadelphia
Mostly cloudy
67° 🌤️
Pittsburgh
—
—
Data sources · Wednesday, August 26
Where the Norristown forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 40.1215°N, -75.3399°.
NBM + global weather models
Updated: 9:23 AM
Weather in Norristown
The 10-day span for Norristown runs from a high near 89° on Monday down to 59° overnight on Saturday. About 2.7 in of precipitation is expected in total; the most likely wet day is Tuesday (92% chance). Wind is the one to watch: gusts to 29 mph around Friday. No active NWS alerts at the moment — quiet on the hazards front. Right now Norristown is about 17° cooler than nearby Trenton. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Norristown, PA · Elev 157 ft · 40.12°N, 75.34°W · Pennsylvania · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:23 AM