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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 · 4:20 PM EDT
25° | 21°
25°C
Feels like 27°
Rain
WindE 6 mph · Gusts 7 mph
Precip91% · 1.91 in
Humidity85% · Dew point 22°
UV index4 Moderate
Air Quality47 Good
Pressure30.06 inHg
Visibility6 mi
Sunrise / Sunset6:30 AM · 7:32 PM · 13h 2m

Weather map — Norristown

Full radar →
Now
25°
0.12 in
6 mph
17:00
25°
20%
6 mph
18:00
24°
29%
6 mph
19:00
24°
20%
8 mph
20:00
23°
23%
7 mph
21:00
22°
23%
8 mph
22:00
21°
53%
6 mph
23:00
21°
59%
5 mph
00:00
20°
33%
4 mph
01:00
20°
0.05 in
3 mph
02:00
20°
43%
3 mph
03:00
20°
59%
0 mph
04:00
20°
0.07 in
3 mph
05:00
20°
0.05 in
1 mph
06:00
20°
0.10 in
3 mph
07:00
20°
43%
2 mph
08:00
21°
42%
2 mph
09:00
21°
39%
9 mph
10:00
22°
34%
10 mph
11:00
24°
32%
13 mph
12:00
23°
32%
10 mph
13:00
24°
26%
9 mph
14:00
26°
23%
9 mph
15:00
29°
15%
9 mph

Today · Wed 9/2

High 25°
91% / 1.91 in

Rain. Winds E at 8 mph.

Tonight · Wed 9/2

Low 20°
23% / –

Partly cloudy. Winds SE at 8 mph.

Tomorrow · Thu 9/3

30° | 20°
89% / 0.38 in

Showers. Winds W at 13 mph.

7-day trend

Norristown · temperature + precipitation

10-day forecast

Updated 4:20 PM

Details & indices

Wind
6 mph E
Gusts 7 mph
Humidity
85%
Dew point 22°
Pressure
30.06 inHg
Rising
UV index
4 — Moderate
High today
Air Quality
Good
AQI 47 · US EPA
Allergy
Low
Ragweed
Visibility
6 mi
Clear view
Allergy — Norristown

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Low

Sun & moon

Sunrise6:30 AM
Sunset7:32 PM
Length of day13h 2m
Moonrise10:07 PM
Moonset12:33 PM
Moon phase🌗 Last Quarter · 67%
Next full moonSep 26 Harvest 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
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
Philadelphia
Heavy rain
25°
Pittsburgh
Sunny
34°
Data sources · Wednesday, September 2
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: 4:20 PM
Weather in Norristown
The 10-day span for Norristown runs from a high near 34° on Friday down to 11° overnight on Wednesday. About 3.6 in of precipitation is expected in total; the most likely wet day is Wednesday (91% chance). Wind is the one to watch: gusts to 35 mph around Thursday. No active NWS alerts at the moment — quiet on the hazards front. Right now Norristown is running about 56° warmer than Bridgeport. 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: 4:20 PM