Harrisburg weather live forecast

Today's maximum temperature in Harrisburg is expected to be 29°C. Select a day from the live weather forecast for Harrisburg, Pennsylvania, USA for more weather parameters.

Wednesday
20th May
29

19

9

UV9
Thursday
21st May
18

14

3

UV5
Friday
22nd May
16

11

0

UV5
Saturday
23rd May
13

10

0

UV1
Sunday
24th May
18

10

0

UV3

5-day weather forecast updated at 04:00 on Wednesday 20th May 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 Wednesday 20th May 2026

Expect isolated thunderstorms in Harrisburg, Pennsylvania with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 5-10 mm of rainfall expected with 70% chance of some rain and a light breeze of 12 kph from the west.

29
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
UV9
UV index (Very High)
70
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from W

Harrisburg weather for Thursday 21st May 2026

Expect mostly cloudy with rain in Harrisburg, Pennsylvania with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 50% chance of some rain and a light breeze of 12 kph from the north.

18
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
UV5
UV index (Moderate)
50
% chance of some rain
<10
mm of rainfall expected
18
°C wind chill
12
kph wind from N

Harrisburg weather for Friday 22nd May 2026

Expect cloudy with some rain in Harrisburg, Pennsylvania with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 86% chance of some rain and a light breeze of 10 kph from the south-east.

16
°C maximum temperature
11
°C minimum temperature
cloudy with some rain
0
hours of sunshine
UV5
UV index (Moderate)
86
% chance of some rain
<10
mm of rainfall expected
16
°C wind chill
10
kph wind from SE

Harrisburg weather for Saturday 23rd May 2026

Expect overcast with light rain in Harrisburg, Pennsylvania with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 13 kph from the east.

13
°C maximum temperature
10
°C minimum temperature
overcast with light rain
0
hours of sunshine
UV1
UV index (Low)
82
% chance of some rain
<30
mm of rainfall expected
13
°C wind chill
13
kph wind from E

Harrisburg weather for Sunday 24th May 2026

Expect isolated thunderstorms in Harrisburg, Pennsylvania with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 44% chance of some rain and a light breeze of 9 kph from the east.