Plano, IL Weather Forecast

Local 7-day forecast

74°
F

Chance Rain Showers then Partly Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Plano, IL in one place.

Friday, May 15, 2026
Wind: 10 to 15 mph S
Friday

A chance of rain showers before 9am. Partly sunny, with a high near 74. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Plano, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 15, 2026 12:04 AM CDT.

The active forecast window currently covers May 15 to May 21, 2026 for Plano, IL.

Page Snapshot

Page focus
city weather
Forecast window
May 15 to May 21, 2026
Latest sync
May 15, 2026 12:04 AM CDT
Forecast office
LOT
Source
NOAA / NWS
Next High
74°F
Friday
Next Low
58°F
Friday Night
Rain Outlook
11
Periods mentioning precipitation
Windiest
15 to 25 mph
Monday

Daily Outlook

Today
May 15
Chance Rain Showers then Partly Sunny
74 °F
/ 58°F
Wind 10 to 15 mph
Sat
May 16
Showers And Thunderstorms Likely
84 °F
/ 59°F
Wind 5 to 10 mph
Sun
May 17
Rain Showers Likely then Mostly Sunny
88 °F
/ 65°F
Wind 5 to 20 mph
Mon
May 18
Chance Showers And Thunderstorms
88 °F
/ 66°F
Wind 15 to 25 mph
Tue
May 19
Rain Showers Likely
84 °F
/ 54°F
Wind 20 to 25 mph
Wed
May 20
Chance Rain Showers
73 °F
/ 49°F
Wind 10 mph
Thu
May 21
Partly Sunny
72 °F
Wind 5 to 10 mph

This Week in Plano

Sunday looks like the warmest upcoming period in Plano at 88 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 49 degrees F.

The strongest winds are forecast for Monday at about 15 to 25 mph S.

Precipitation is mentioned in 11 upcoming forecast periods.

Forecast Details

Last updated
May 15, 2026 12:04 AM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
LOT
Radar station
KLOT

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

Open NOAA source

Extended Forecast

Friday Night
May 15
58°F
Partly Cloudy then Chance Showers And Thunderstorms
5 to 15 mph S

A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Saturday
May 16
84°F
Showers And Thunderstorms Likely
5 to 10 mph SSW

Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.

Saturday Night
May 16
59°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
5 mph S

A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Sunday
May 17
88°F
Rain Showers Likely then Mostly Sunny
5 to 20 mph SSE

Rain showers likely before 7am. Mostly sunny, with a high near 88. Chance of precipitation is 60%.

Sunday Night
May 17
65°F
Mostly Clear
15 to 20 mph S

Mostly clear, with a low around 65.

Monday
May 18
88°F
Chance Showers And Thunderstorms
15 to 25 mph S

A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88.

Monday Night
May 18
66°F
Showers And Thunderstorms Likely
20 to 25 mph SSW

Showers and thunderstorms likely. Mostly cloudy, with a low around 66.

Tuesday
May 19
84°F
Rain Showers Likely
20 to 25 mph SW

Rain showers likely before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 84.

Tuesday Night
May 19
54°F
Showers And Thunderstorms Likely
5 to 15 mph WSW

Showers and thunderstorms likely. Mostly cloudy, with a low around 54.

Wednesday
May 20
73°F
Chance Rain Showers
10 mph NNW

A chance of rain showers. Mostly sunny, with a high near 73.

Wednesday Night
May 20
49°F
Slight Chance Rain Showers
5 to 10 mph NE

A slight chance of rain showers before 1am. Mostly cloudy, with a low around 49.

Thursday
May 21
72°F
Partly Sunny
5 to 10 mph ENE

Partly sunny, with a high near 72.

Detailed Forecast

Period Conditions Temp Wind
Friday
May 15
Chance Rain Showers then Partly Sunny
74°F
10 to 15 mph
S
Friday Night
May 15
Partly Cloudy then Chance Showers And Thunderstorms
58°F
5 to 15 mph
S
Saturday
May 16
Showers And Thunderstorms Likely
84°F
5 to 10 mph
SSW
Saturday Night
May 16
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
59°F
5 mph
S
Sunday
May 17
Rain Showers Likely then Mostly Sunny
88°F
5 to 20 mph
SSE
Sunday Night
May 17
Mostly Clear
65°F
15 to 20 mph
S
Monday
May 18
Chance Showers And Thunderstorms
88°F
15 to 25 mph
S
Monday Night
May 18
Showers And Thunderstorms Likely
66°F
20 to 25 mph
SSW
Tuesday
May 19
Rain Showers Likely
84°F
20 to 25 mph
SW
Tuesday Night
May 19
Showers And Thunderstorms Likely
54°F
5 to 15 mph
WSW
Wednesday
May 20
Chance Rain Showers
73°F
10 mph
NNW
Wednesday Night
May 20
Slight Chance Rain Showers
49°F
5 to 10 mph
NE
Thursday
May 21
Partly Sunny
72°F
5 to 10 mph
ENE
Plano Il Downtown1
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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.