Johnson County, IN Weather Forecast
County weather hub
Sunny
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 87. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.
County Weather Overview
This county weather page brings together forecast coverage for Johnson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 8 of 8 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 17, 2026
- Latest sync
- Oct 11, 2026 12:58 PM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Tuesday looks like the warmest upcoming period in Johnson County at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday Night at about 12 to 18 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 11, 2026 12:58 PM EDT
- Coverage
- 5 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IND
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 2am. Mostly clear, with a low around 65. West southwest wind 5 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Partly sunny, with a high near 79. North northwest wind 5 to 8 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Northeast wind around 9 mph. Chance of precipitation is 70%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 74. East wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
A chance of rain showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
A slight chance of rain showers before 8pm. Mostly cloudy, with a low around 41. Chance of precipitation is 20%.
Partly sunny, with a high near 56.
Partly cloudy, with a low around 36.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
87°F |
8 to 13 mph
SW
|
|
Tuesday Night
Oct 13
|
Mostly Clear then Chance Showers And Thunderstorms
|
65°F |
5 to 12 mph
WSW
|
|
Wednesday
Oct 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
79°F |
5 to 8 mph
NNW
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
60°F |
9 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
74°F |
12 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
54°F |
13 mph
S
|
|
Friday
Oct 16
|
Chance Rain Showers
|
66°F |
13 to 17 mph
W
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers then Mostly Cloudy
|
41°F |
12 to 18 mph
NW
|
|
Saturday
Oct 17
|
Partly Sunny
|
56°F |
14 mph
NNW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
36°F |
5 to 12 mph
N
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 8 of 8 mapped cities in Johnson County.
Largest mapped city population in this region: 60,279.
