Union County, PA Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 80. South wind 2 to 8 mph.
County Weather Overview
This county weather page brings together forecast coverage for Union County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Union County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 12:40 PM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Today looks like the warmest upcoming period in Union County at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Saturday at about 14 to 17 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 12:40 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 65. Southwest wind around 6 mph.
A chance of rain showers after 8am. Partly sunny, with a high near 79. West wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly cloudy, with a low around 53. Northwest wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 65. Northeast wind 1 to 5 mph.
A chance of rain showers between 8pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 80%.
A slight chance of rain showers before 8pm. Mostly cloudy, with a low around 40.
Mostly sunny, with a high near 52.
Areas of frost after 3am. Mostly clear, with a low around 35.
Widespread frost before 9am. Sunny, with a high near 59.
Mostly clear, with a low around 37.
Areas of frost before 9am. Mostly sunny, with a high near 64.
Mostly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 13
|
Mostly Sunny
|
80°F |
2 to 8 mph
S
|
|
Tonight
Oct 13
|
Mostly Clear
|
65°F |
6 mph
SW
|
|
Wednesday
Oct 14
|
Chance Rain Showers
|
79°F |
6 mph
W
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy
|
53°F |
5 mph
NW
|
|
Thursday
Oct 15
|
Mostly Sunny
|
65°F |
1 to 5 mph
NE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
55°F |
0 to 7 mph
SE
|
|
Friday
Oct 16
|
Showers And Thunderstorms
|
69°F |
6 to 16 mph
SW
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers then Mostly Cloudy
|
40°F |
15 mph
NW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
52°F |
14 to 17 mph
NW
|
|
Saturday Night
Oct 17
|
Mostly Clear then Areas Of Frost
|
35°F |
3 to 12 mph
NW
|
|
Sunday
Oct 18
|
Widespread Frost then Sunny
|
59°F |
5 mph
W
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
0 to 3 mph
SW
|
|
Monday
Oct 19
|
Areas Of Frost then Mostly Sunny
|
64°F |
0 to 6 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
43°F |
0 to 3 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Union County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Union County.
Largest mapped city population in this region: 13,293.
