As of 00:31 CDT

Weather in Clinton, IL

57°

Clinton, Thursday, 8 October, 00:31

Mostly clear. Feels like 56°. High 78°, low 52°.

Pressure29.97 inHg

Wind2.7 mph N

Humidity74%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Fri, 0982° / 52°

82 °

Clinton, Friday, 9 October

Clear. High 82°, low 52°.

Pressure30.12 inHg

Wind11.4 mph S

Humidity35%

Visibility6.2 mi

Dew point48°

Sat, 1083° / 60°

83 °

Clinton, Saturday, 10 October

Overcast. High 83°, low 60°.

Pressure30.12 inHg

Wind9.3 mph S

Humidity40%

Visibility6.2 mi

Dew point55°

Sun, 1171° / 61°

0.02

71 °

Clinton, Sunday, 11 October

Light rain. High 71°, low 61°.

Pressure29.94 inHg

Wind6.7 mph NE

Humidity61%

Visibility6.2 mi

Dew point55°

Mon, 1287° / 57°

87 °

Clinton, Monday, 12 October

Clear. High 87°, low 57°.

Pressure29.85 inHg

Wind14 mph SW

Humidity39%

Visibility—

Dew point53°

Tue, 1376° / 50°

76 °

Clinton, Tuesday, 13 October

Overcast. High 76°, low 50°.

Pressure30.03 inHg

Wind14.7 mph NW

Humidity46%

Visibility—

Dew point43°

Wed, 1465° / 44°

65 °

Clinton, Wednesday, 14 October

Partly cloudy. High 65°, low 44°.

Pressure30.06 inHg

Wind13.5 mph SE

Humidity31%

Visibility—

Dew point31°

Thu, 1593° / 62°

93 °

Clinton, Thursday, 15 October

Clear. High 93°, low 62°.

Pressure29.83 inHg

Wind21.8 mph S

Humidity39%

Visibility—

Dew point59°

Fri, 1683° / 62°

0.17

83 °

Clinton, Friday, 16 October

Light rain. High 83°, low 62°.

Pressure29.91 inHg

Wind18.9 mph S

Humidity54%

Visibility—

Dew point64°

Sat, 1757° / 47°

57 °

Clinton, Saturday, 17 October

Overcast. High 57°, low 47°.

Pressure30.21 inHg

Wind12.6 mph W

Humidity47%

Visibility—

Dew point32°

Sun, 1858° / 42°

58 °

Clinton, Sunday, 18 October

Mostly clear. High 58°, low 42°.

Pressure30.30 inHg

Wind8.9 mph NW

Humidity41%

Visibility—

Dew point31°

Mon, 1963° / 42°

63 °

Clinton, Monday, 19 October

Overcast. High 63°, low 42°.

Pressure30.30 inHg

Wind7 mph S

Humidity35%

Visibility—

Dew point31°

Tue, 2069° / 47°

69 °

Clinton, Tuesday, 20 October

Partly cloudy. High 69°, low 47°.

Pressure30.12 inHg

Wind12.4 mph N

Humidity29%

Visibility—

Dew point33°

Wed, 2159° / 42°

59 °

Clinton, Wednesday, 21 October

Overcast. High 59°, low 42°.

Pressure30.21 inHg

Wind10.8 mph E

Humidity38%

Visibility—

Dew point30°

Thu, 2267° / 46°

67 °

Clinton, Thursday, 22 October

Overcast. High 67°, low 46°.

Pressure29.74 inHg

Wind18.3 mph S

Humidity39%

Visibility—

Dew point38°

Fri, 2355° / 51°

0.13

55 °

Clinton, Friday, 23 October

Light rain. High 55°, low 51°.

Pressure29.77 inHg

Wind12.2 mph S

Humidity83%

Visibility—

Dew point49°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Clinton, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Clinton, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.