Jefferson County, IN Weather Forecast

County weather hub

92°

Patchy Fog then Slight Chance Showers And Thunderstorms

Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Thursday, July 16, 2026

Wind: 2 mph W

Thursday

Patchy fog between 8am and 9am, then a slight chance of showers and thunderstorms. Sunny, with a high near 92. Heat index values as high as 100. West wind around 2 mph. Chance of precipitation is 20%.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Jefferson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 2 of 2 mapped cities in Jefferson County.

Page Snapshot

Page focus: county weather
Forecast window: Jul 16 to Jul 21, 2026
Latest sync: Jul 15, 2026 5:53 PM EDT
Forecast office: LMK
Source: NOAA / NWS

Next High

92°F

Thursday

Next Low

73°F

Thursday Night

Rain Outlook

Periods mentioning precipitation

Windiest

3 to 9 mph

Tuesday

Daily Outlook

Today

Jul 16

Patchy Fog then Slight Chance Showers And Thunderstorms

92 °F

/ 73°F

Wind 2 mph

Fri

Jul 17

Slight Chance Showers And Thunderstorms

89 °F

/ 72°F

Wind 1 to 5 mph

Sat

Jul 18

Showers And Thunderstorms Likely

88 °F

/ 71°F

Wind 2 to 8 mph

Sun

Jul 19

Chance Showers And Thunderstorms then Mostly Sunny

86 °F

/ 67°F

Wind 6 mph

Mon

Jul 20

Mostly Sunny

87 °F

/ 71°F

Wind 3 mph

Tue

Jul 21

Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms

87 °F

/ 66°F

Wind 3 to 9 mph

This Week in Jefferson County

Thursday looks like the warmest upcoming period in Jefferson County at 92 degrees F.

Tuesday Night is the coolest period ahead with temperatures near 66 degrees F.

The strongest winds are forecast for Tuesday at about 3 to 9 mph NW.

Precipitation is mentioned in 10 upcoming forecast periods.

Forecast Details

Last updated: Jul 15, 2026 5:53 PM EDT
Coverage: 6 days
Time zone: America/Indiana/Indianapolis
Forecast office: LMK
Radar station: KLVX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Thursday Night

Jul 16

73°F

Slight Chance Showers And Thunderstorms then Partly Cloudy

2 mph SW

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Heat index values as high as 101. Southwest wind around 2 mph. Chance of precipitation is 20%.

Friday

Jul 17

89°F

Slight Chance Showers And Thunderstorms

1 to 5 mph SW

A slight chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely between 2pm and 5pm, then showers and thunderstorms likely. Mostly sunny, with a high near 89. Southwest wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Jul 17

72°F

Showers And Thunderstorms Likely

1 to 5 mph SW

Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Saturday

Jul 18

88°F

Showers And Thunderstorms Likely

2 to 8 mph W

Showers and thunderstorms likely after 8am. Partly sunny, with a high near 88. Chance of precipitation is 70%.

Saturday Night

Jul 18

71°F

Showers And Thunderstorms Likely

3 to 7 mph W

Showers and thunderstorms likely. Partly cloudy, with a low around 71. Chance of precipitation is 70%.

Sunday

Jul 19

86°F

Chance Showers And Thunderstorms then Mostly Sunny

6 mph NW

A chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

Sunday Night

Jul 19

67°F

Mostly Clear

1 to 6 mph NE

Mostly clear, with a low around 67.

Monday

Jul 20

87°F

Mostly Sunny

3 mph S

Mostly sunny, with a high near 87.

Monday Night

Jul 20

71°F

Slight Chance Showers And Thunderstorms

3 mph SW

A slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

Tuesday

Jul 21

87°F

Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms

3 to 9 mph NW

A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

Tuesday Night

Jul 21

66°F

Slight Chance Showers And Thunderstorms

3 to 9 mph N

A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 66.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Thursday Jul 16	Patchy Fog then Slight Chance Showers And Thunderstorms	92°F	2 mph W	Patchy fog between 8am and 9am, then a slight chance of showers and thunderstorms. Sunny, with a high near 92. Heat inde...
Thursday Night Jul 16	Slight Chance Showers And Thunderstorms then Partly Cloudy	73°F	2 mph SW	A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Heat index values as high...
Friday Jul 17	Slight Chance Showers And Thunderstorms	89°F	1 to 5 mph SW	A slight chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely between 2pm and...
Friday Night Jul 17	Showers And Thunderstorms Likely	72°F	1 to 5 mph SW	Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New ra...
Saturday Jul 18	Showers And Thunderstorms Likely	88°F	2 to 8 mph W	Showers and thunderstorms likely after 8am. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night Jul 18	Showers And Thunderstorms Likely	71°F	3 to 7 mph W	Showers and thunderstorms likely. Partly cloudy, with a low around 71. Chance of precipitation is 70%.
Sunday Jul 19	Chance Showers And Thunderstorms then Mostly Sunny	86°F	6 mph NW	A chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night Jul 19	Mostly Clear	67°F	1 to 6 mph NE	Mostly clear, with a low around 67.
Monday Jul 20	Mostly Sunny	87°F	3 mph S	Mostly sunny, with a high near 87.
Monday Night Jul 20	Slight Chance Showers And Thunderstorms	71°F	3 mph SW	A slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Partly clo...
Tuesday Jul 21	Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms	87°F	3 to 9 mph NW	A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with...
Tuesday Night Jul 21	Slight Chance Showers And Thunderstorms	66°F	3 to 9 mph N	A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 66.

Major City Forecasts

Live forecast snapshots for major cities across Jefferson County.

Coverage

Tracked cities

Coverage

100%

Forecast coverage currently spans 2 of 2 mapped cities in Jefferson County.

Largest mapped city population in this region: 11,750.

Region Links

Indiana weather

Statewide weather overview

United States weather

National weather entry point

Jefferson County Indiana Courthouse image

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.