National Weather Service Forecast for: Plainfield IN
Issued by: National Weather Service Indianapolis, IN
Updated: 10:21 pm EDT Jun 18, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm after midnight.
Partly Cloudy

 Juneteenth

Juneteenth: Sunny, with a high near 77. Light west northwest wind increasing to 5 to 10 mph in the morning.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 59. West southwest wind 3 to 6 mph.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 80. West southwest wind 5 to 9 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 61. West wind around 6 mph becoming calm in the evening.
Partly Cloudy

 Sunday

Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Southeast wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Slight Chance
Showers then
Chance
T-storms
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 63. East southeast wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Showers

 Monday

Monday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. West northwest wind 11 to 13 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Chance
Showers

 Monday
Night
Monday Night: Partly cloudy, with a low around 57. North wind 6 to 10 mph, with gusts as high as 20 mph.
Partly Cloudy
Lo 57 °F Hi 77 °F Lo 59 °F Hi 80 °F Lo 61 °F Hi 79 °F Lo 63 °F Hi 75 °F Lo 57 °F

 

Tonight
 
 Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm after midnight.
Juneteenth
 
 Sunny, with a high near 77. Light west northwest wind increasing to 5 to 10 mph in the morning.
Friday Night
 
 Partly cloudy, with a low around 59. West southwest wind 3 to 6 mph.
Saturday
 
 Mostly sunny, with a high near 80. West southwest wind 5 to 9 mph.
Saturday Night
 
 Partly cloudy, with a low around 61. West wind around 6 mph becoming calm in the evening.
Sunday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Southeast wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 63. East southeast wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Monday
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. West northwest wind 11 to 13 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Monday Night
 
 Partly cloudy, with a low around 57. North wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Mostly sunny, with a high near 77. North northeast wind around 6 mph.
Tuesday Night
 
 Partly cloudy, with a low around 58.
Wednesday
 
 Mostly sunny, with a high near 77.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 59.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Plainfield IN.