Jay County, IN Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Jay County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 83. South wind 0 to 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Jay 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 Jay County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 5:42 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jay County
Tuesday looks like the warmest upcoming period in Jay County at 92 degrees F.
Saturday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Sunday at about 0 to 10 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 5:42 AM EDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IWX
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 64. South wind 0 to 5 mph.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 90.
Partly cloudy, with a low around 73.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 74.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
A slight chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71.
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
83°F |
0 to 5 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Cloudy
|
64°F |
0 to 5 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
86°F |
0 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
70°F |
5 to 10 mph
S
|
|
Monday
Aug 31
|
Mostly Sunny
|
90°F |
5 to 10 mph
SW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
73°F |
5 to 10 mph
SW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
92°F |
5 to 10 mph
SW
|
|
Tuesday Night
Sep 1
|
Partly Cloudy
|
74°F |
5 to 10 mph
SW
|
|
Wednesday
Sep 2
|
Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
SW
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
71°F |
0 to 10 mph
SW
|
|
Thursday
Sep 3
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
90°F |
5 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Jay County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Jay County.
Largest mapped city population in this region: 5,992.
