Harrisburg weather live forecast

Today's maximum temperature in Harrisburg is expected to be 27°C. Select a day from the live weather forecast for Harrisburg, Pennsylvania, USA for more weather parameters.

Friday
18th Sep
27

19

8

5
Saturday
19th Sep
23

16

3

6
Sunday
20th Sep
24

19

0

2
Monday
21st Sep
21

17

0

2
Tuesday
22nd Sep
17

14

0

1

5-day weather forecast updated at 04:00 on Friday 18th September 2026 GMT

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The 5-day weather forecast for Pennsylvania (Harrisburg) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Harrisburg weather forecast by day

Below are the detailed weather forecasts for Harrisburg for the next 5 days.

Harrisburg weather for Friday 18th September 2026

Expect scattered clouds in Harrisburg, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north.

27
°C maximum temperature
19
°C minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from N

Harrisburg weather for Saturday 19th September 2026

Expect broken clouds in Harrisburg, Pennsylvania with a maximum temperature of 23°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

23
°C maximum temperature
16
°C minimum temperature
broken clouds
3
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from E

Harrisburg weather for Sunday 20th September 2026

Expect isolated thunderstorms in Harrisburg, Pennsylvania with a maximum temperature of 24°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a light breeze of 11 kph from the south-east.

24
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
94
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
11
kph wind from SE

Harrisburg weather for Monday 21st September 2026

Expect mostly cloudy with light rain in Harrisburg, Pennsylvania with a maximum temperature of 21°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a light breeze of 11 kph from the north.

21
°C maximum temperature
17
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
54
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
11
kph wind from N

Harrisburg weather for Tuesday 22nd September 2026

Expect cloudy with some rain in Harrisburg, Pennsylvania with a maximum temperature of 17°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 13 kph from the east.