Stephenson County, IL Weather Forecast
County weather hub
Partly Sunny then Slight Chance Rain Showers
Compare major city weather across Stephenson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of rain showers after 1pm. Partly sunny, with a high near 58.
County Weather Overview
This county weather page brings together forecast coverage for Stephenson 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 Stephenson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:41 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Stephenson County
Monday looks like the warmest upcoming period in Stephenson County at 78 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:41 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 80%.
Showers and thunderstorms likely. Partly sunny, with a high near 64. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Partly Sunny then Slight Chance Rain Showers
|
58°F |
5 to 10 mph
SE
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms
|
51°F |
10 to 15 mph
S
|
|
Sunday
Apr 12
|
Showers And Thunderstorms Likely
|
72°F |
15 to 20 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
61°F |
15 to 20 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
78°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
15 to 20 mph
SW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms
|
74°F |
15 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
48°F |
10 to 15 mph
S
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
64°F |
15 mph
S
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
42°F |
10 to 15 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Stephenson County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Stephenson County.
Largest mapped city population in this region: 23,447.
