Princeton, IL Weather Forecast

Local 7-day forecast

84°
F

Partly Sunny

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

Saturday, May 30, 2026
Wind: 10 to 15 mph E
This Afternoon

Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. East wind 10 to 15 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Princeton, 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 30, 2026 4:26 PM CDT.

The active forecast window currently covers May 30 to Jun 5, 2026 for Princeton, IL.

Page Snapshot

Page focus
city weather
Forecast window
May 30 to Jun 5, 2026
Latest sync
May 30, 2026 4:26 PM CDT
Forecast office
DVN
Source
NOAA / NWS
Next High
84°F
This Afternoon
Next Low
58°F
Tonight
Rain Outlook
6
Periods mentioning precipitation
Windiest
10 to 15 mph
This Afternoon

Daily Outlook

Today
May 30
Partly Sunny
84 °F
/ 58°F
Wind 10 to 15 mph
Sun
May 31
Partly Sunny
81 °F
/ 59°F
Wind 5 to 10 mph
Mon
Jun 1
Slight Chance Rain Showers
83 °F
/ 55°F
Wind 5 mph
Tue
Jun 2
Sunny
83 °F
/ 54°F
Wind 5 to 10 mph
Wed
Jun 3
Sunny
86 °F
/ 58°F
Wind 0 to 5 mph
Thu
Jun 4
Mostly Sunny
88 °F
/ 64°F
Wind 5 to 15 mph
Fri
Jun 5
Chance Showers And Thunderstorms
89 °F
/ 65°F
Wind 10 to 15 mph

This Week in Princeton

Friday looks like the warmest upcoming period in Princeton at 89 degrees F.

Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.

The strongest winds are forecast for This Afternoon at about 10 to 15 mph E.

Precipitation is mentioned in 6 upcoming forecast periods.

Forecast Details

Last updated
May 30, 2026 4:26 PM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
DVN
Radar station
KDVN

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

Open NOAA source

Extended Forecast

Tonight
May 30
58°F
Mostly Cloudy
10 to 15 mph E

Mostly cloudy, with a low around 58. East wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday
May 31
81°F
Partly Sunny
5 to 10 mph SE

Partly sunny. High near 81, with temperatures falling to around 79 in the afternoon. Southeast wind 5 to 10 mph.

Sunday Night
May 31
59°F
Partly Cloudy then Slight Chance Rain Showers
0 to 5 mph E

A slight chance of rain showers after 4am. Partly cloudy, with a low around 59. East wind 0 to 5 mph. Chance of precipitation is 20%.

Monday
Jun 1
83°F
Slight Chance Rain Showers
5 mph E

A slight chance of rain showers. Mostly sunny, with a high near 83.

Monday Night
Jun 1
55°F
Slight Chance Rain Showers then Mostly Clear
5 mph NE

A slight chance of rain showers before 7pm. Mostly clear, with a low around 55.

Tuesday
Jun 2
83°F
Sunny
5 to 10 mph NE

Sunny, with a high near 83.

Tuesday Night
Jun 2
54°F
Clear
0 to 10 mph E

Clear, with a low around 54.

Wednesday
Jun 3
86°F
Sunny
0 to 5 mph SE

Sunny, with a high near 86.

Wednesday Night
Jun 3
58°F
Mostly Clear
5 mph S

Mostly clear, with a low around 58.

Thursday
Jun 4
88°F
Mostly Sunny
5 to 15 mph S

Mostly sunny, with a high near 88.

Thursday Night
Jun 4
64°F
Mostly Cloudy then Chance Showers And Thunderstorms
10 to 15 mph SW

A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

Friday
Jun 5
89°F
Chance Showers And Thunderstorms
10 to 15 mph SW

A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Friday Night
Jun 5
65°F
Chance Showers And Thunderstorms
10 to 15 mph SW

A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

Detailed Forecast

Period Conditions Temp Wind
This Afternoon
May 30
Partly Sunny
84°F
10 to 15 mph
E
Tonight
May 30
Mostly Cloudy
58°F
10 to 15 mph
E
Sunday
May 31
Partly Sunny
81°F
5 to 10 mph
SE
Sunday Night
May 31
Partly Cloudy then Slight Chance Rain Showers
59°F
0 to 5 mph
E
Monday
Jun 1
Slight Chance Rain Showers
83°F
5 mph
E
Monday Night
Jun 1
Slight Chance Rain Showers then Mostly Clear
55°F
5 mph
NE
Tuesday
Jun 2
Sunny
83°F
5 to 10 mph
NE
Tuesday Night
Jun 2
Clear
54°F
0 to 10 mph
E
Wednesday
Jun 3
Sunny
86°F
0 to 5 mph
SE
Wednesday Night
Jun 3
Mostly Clear
58°F
5 mph
S
Thursday
Jun 4
Mostly Sunny
88°F
5 to 15 mph
S
Thursday Night
Jun 4
Mostly Cloudy then Chance Showers And Thunderstorms
64°F
10 to 15 mph
SW
Friday
Jun 5
Chance Showers And Thunderstorms
89°F
10 to 15 mph
SW
Friday Night
Jun 5
Chance Showers And Thunderstorms
65°F
10 to 15 mph
SW
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Princeton-IL-mainstreet1 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.