Kosciusko County, IN Weather Forecast

County weather hub

84°
F

Mostly Sunny then Slight Chance Showers And Thunderstorms

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

Monday, May 18, 2026
Wind: 10 to 15 mph S
Monday

A slight chance of showers and thunderstorms between noon and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 84. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Kosciusko 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 Kosciusko County.

Page Snapshot

Page focus
county weather
Forecast window
May 18 to May 24, 2026
Latest sync
May 17, 2026 9:27 PM EDT
Forecast office
IWX
Source
NOAA / NWS
Next High
84°F
Monday
Next Low
68°F
Monday Night
Rain Outlook
9
Periods mentioning precipitation
Windiest
10 to 20 mph
Tuesday

Daily Outlook

Today
May 18
Mostly Sunny then Slight Chance Showers And Thunderstorms
84 °F
/ 68°F
Wind 10 to 15 mph
Tue
May 19
Slight Chance Showers And Thunderstorms
82 °F
/ 54°F
Wind 10 to 20 mph
Wed
May 20
Partly Sunny
63 °F
/ 46°F
Wind 10 mph
Thu
May 21
Mostly Sunny
65 °F
/ 48°F
Wind 5 to 10 mph
Fri
May 22
Slight Chance Rain Showers
71 °F
/ 56°F
Wind 5 mph
Sat
May 23
Chance Rain Showers
75 °F
/ 59°F
Wind 5 mph
Sun
May 24
Slight Chance Rain Showers then Chance Showers And Thunderstorms
80 °F
Wind 5 mph

This Week in Kosciusko County

Monday looks like the warmest upcoming period in Kosciusko County at 84 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 46 degrees F.

The strongest winds are forecast for Tuesday at about 10 to 20 mph SW.

Precipitation is mentioned in 9 upcoming forecast periods.

Forecast Details

Last updated
May 17, 2026 9:27 PM EDT
Coverage
7 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 source

Extended Forecast

Monday Night
May 18
68°F
Showers And Thunderstorms Likely then Mostly Cloudy
10 to 15 mph SW

Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Mostly cloudy, with a low around 68. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Tuesday
May 19
82°F
Slight Chance Showers And Thunderstorms
10 to 20 mph SW

A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms. Partly sunny, with a high near 82. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night
May 19
54°F
Showers And Thunderstorms
10 to 15 mph W

Showers and thunderstorms before 2am. Mostly cloudy, with a low around 54. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday
May 20
63°F
Partly Sunny
10 mph N

Partly sunny, with a high near 63.

Wednesday Night
May 20
46°F
Partly Cloudy
5 to 10 mph NE

Partly cloudy, with a low around 46.

Thursday
May 21
65°F
Mostly Sunny
5 to 10 mph E

Mostly sunny, with a high near 65.

Thursday Night
May 21
48°F
Partly Cloudy
5 mph E

Partly cloudy, with a low around 48.

Friday
May 22
71°F
Slight Chance Rain Showers
5 mph SE

A slight chance of rain showers after 8am. Partly sunny, with a high near 71. Chance of precipitation is 20%.

Friday Night
May 22
56°F
Chance Rain Showers
5 mph NE

A chance of rain showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

Saturday
May 23
75°F
Chance Rain Showers
5 mph SE

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75.

Saturday Night
May 23
59°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
5 mph NE

A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 59.

Sunday
May 24
80°F
Slight Chance Rain Showers then Chance Showers And Thunderstorms
5 mph SE

A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80.

Detailed Forecast

Period Conditions Temp Wind
Monday
May 18
Mostly Sunny then Slight Chance Showers And Thunderstorms
84°F
10 to 15 mph
S
Monday Night
May 18
Showers And Thunderstorms Likely then Mostly Cloudy
68°F
10 to 15 mph
SW
Tuesday
May 19
Slight Chance Showers And Thunderstorms
82°F
10 to 20 mph
SW
Tuesday Night
May 19
Showers And Thunderstorms
54°F
10 to 15 mph
W
Wednesday
May 20
Partly Sunny
63°F
10 mph
N
Wednesday Night
May 20
Partly Cloudy
46°F
5 to 10 mph
NE
Thursday
May 21
Mostly Sunny
65°F
5 to 10 mph
E
Thursday Night
May 21
Partly Cloudy
48°F
5 mph
E
Friday
May 22
Slight Chance Rain Showers
71°F
5 mph
SE
Friday Night
May 22
Chance Rain Showers
56°F
5 mph
NE
Saturday
May 23
Chance Rain Showers
75°F
5 mph
SE
Saturday Night
May 23
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
59°F
5 mph
NE
Sunday
May 24
Slight Chance Rain Showers then Chance Showers And Thunderstorms
80°F
5 mph
SE

Coverage

Tracked cities
2
Coverage
100%

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

Largest mapped city population in this region: 15,200.

Kosciusko County Courthouse from southeast near sunset
Kosciusko County Courthouse from southeast near sunset 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.