Gettysburg weather live forecast

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

Thursday
17th Sep
29

19

5

4
Friday
18th Sep
25

16

8

6
Saturday
19th Sep
25

14

6

6
Sunday
20th Sep
25

18

1

3
Monday
21st Sep
19

15

1

1

5-day weather forecast updated at 04:03 on Thursday 17th September 2026 GMT

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

Gettysburg weather forecast by day

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

Gettysburg weather for Thursday 17th September 2026

Expect isolated thunderstorms in Gettysburg, Pennsylvania with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 76% chance of some rain and little or no wind of 6 kph from the south.

29
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
4
UV index (Moderate)
76
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
6
kph wind from S

Gettysburg weather for Friday 18th September 2026

Expect scattered clouds in Gettysburg, Pennsylvania with a maximum temperature of 25°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north.

25
°C maximum temperature
16
°C minimum temperature
scattered clouds
8
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from N

Gettysburg weather for Saturday 19th September 2026

Expect broken clouds in Gettysburg, Pennsylvania with a maximum temperature of 25°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-east.

25
°C maximum temperature
14
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
25
°C wind chill
10
kph wind from SE

Gettysburg weather for Sunday 20th September 2026

Expect isolated thunderstorms in Gettysburg, Pennsylvania with a maximum temperature of 25°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 13 kph from the south.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
3
UV index (Moderate)
91
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
13
kph wind from S

Gettysburg weather for Monday 21st September 2026

Expect mostly cloudy with light rain in Gettysburg, Pennsylvania with a maximum temperature of 19°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a light breeze of 11 kph from the north-east.