Sussex County, DE Weather Forecast
County weather hub
Sunny
Compare major city weather across Sussex County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 99. Heat index values as high as 107. West wind 10 to 15 mph.
County Weather Overview
This county weather page brings together forecast coverage for Sussex County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Sussex County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 10:58 AM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Sussex County
Today looks like the warmest upcoming period in Sussex County at 99 degrees F.
Sunday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Today at about 10 to 15 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 10:58 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDOX
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 77. Heat index values as high as 105. West wind 5 to 10 mph.
Areas of smoke after 8am. Mostly sunny, with a high near 97. Heat index values as high as 102. East wind 5 to 10 mph.
Patchy smoke before 8pm, then patchy smoke and a slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Heat index values as high as 100. West wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 92. Northeast wind 5 to 10 mph.
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 92. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Mostly sunny, with a high near 89.
Partly cloudy, with a low around 73.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 15
|
Sunny
|
99°F |
10 to 15 mph
W
|
|
Tonight
Jul 15
|
Mostly Clear
|
77°F |
5 to 10 mph
W
|
|
Thursday
Jul 16
|
Areas Of Smoke
|
97°F |
5 to 10 mph
E
|
|
Thursday Night
Jul 16
|
Patchy Smoke
|
75°F |
5 to 10 mph
W
|
|
Friday
Jul 17
|
Sunny
|
92°F |
5 to 10 mph
NE
|
|
Friday Night
Jul 17
|
Partly Cloudy then Chance Showers And Thunderstorms
|
74°F |
5 to 10 mph
SE
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
92°F |
5 to 10 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
74°F |
5 to 10 mph
SW
|
|
Sunday
Jul 19
|
Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
W
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
71°F |
0 to 5 mph
E
|
|
Monday
Jul 20
|
Mostly Sunny
|
89°F |
0 to 10 mph
SE
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
73°F |
5 to 10 mph
S
|
|
Tuesday
Jul 21
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
5 to 15 mph
SW
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Sussex County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Sussex County.
Largest mapped city population in this region: 12,278.
