As of 09:29 CDT

Weather in Niantic, IL

59°

Niantic, Sunday, 11 October, 09:29

Clear. Feels like 59°. High 80°, low 55°.

Pressure30.00 inHg

Wind2.3 mph E

Humidity96%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Mon, 1287° / 59°

87 °

Niantic, Monday, 12 October

Overcast. High 87°, low 59°.

Pressure29.91 inHg

Wind10.4 mph SW

Humidity53%

Visibility6.2 mi

Dew point62°

Tue, 1388° / 71°

88 °

Niantic, Tuesday, 13 October

Clear. High 88°, low 71°.

Pressure29.88 inHg

Wind9.8 mph SW

Humidity53%

Visibility6.2 mi

Dew point66°

Wed, 1479° / 70°

0.44

79 °

Niantic, Wednesday, 14 October

Rain. High 79°, low 70°.

Pressure30.00 inHg

Wind2.6 mph N

Humidity90%

Visibility2.6 mi

Dew point71°

Thu, 1576° / 65°

0.24

76 °

Niantic, Thursday, 15 October

Light rain. High 76°, low 65°.

Pressure30.00 inHg

Wind10.8 mph SW

Humidity93%

Visibility—

Dew point71°

Fri, 1670° / 51°

0.27

70 °

Niantic, Friday, 16 October

Rain. High 70°, low 51°.

Pressure30.36 inHg

Wind17.8 mph N

Humidity45%

Visibility—

Dew point39°

Sat, 1746° / 35°

46 °

Niantic, Saturday, 17 October

Clear. High 46°, low 35°.

Pressure30.56 inHg

Wind13.1 mph N

Humidity25%

Visibility—

Dew point10°

Sun, 1855° / 32°

55 °

Niantic, Sunday, 18 October

Clear. High 55°, low 32°.

Pressure30.53 inHg

Wind16.1 mph S

Humidity21%

Visibility—

Dew point11°

Mon, 1966° / 40°

66 °

Niantic, Monday, 19 October

Partly cloudy. High 66°, low 40°.

Pressure30.39 inHg

Wind15.3 mph SW

Humidity20%

Visibility—

Dew point19°

Tue, 2068° / 45°

68 °

Niantic, Tuesday, 20 October

Overcast. High 68°, low 45°.

Pressure30.33 inHg

Wind10.3 mph S

Humidity22%

Visibility—

Dew point24°

Wed, 2171° / 52°

71 °

Niantic, Wednesday, 21 October

Overcast. High 71°, low 52°.

Pressure30.24 inHg

Wind11.1 mph S

Humidity25%

Visibility—

Dew point29°

Thu, 2274° / 53°

74 °

Niantic, Thursday, 22 October

Overcast. High 74°, low 53°.

Pressure30.24 inHg

Wind8 mph S

Humidity30%

Visibility—

Dew point36°

Fri, 2378° / 59°

78 °

Niantic, Friday, 23 October

Partly cloudy. High 78°, low 59°.

Pressure30.15 inHg

Wind9.3 mph SW

Humidity31%

Visibility—

Dew point41°

Sat, 2477° / 59°

77 °

Niantic, Saturday, 24 October

Mostly clear. High 77°, low 59°.

Pressure30.12 inHg

Wind7.7 mph E

Humidity47%

Visibility—

Dew point52°

Sun, 2582° / 62°

0.28

82 °

Niantic, Sunday, 25 October

Rain. High 82°, low 62°.

Pressure29.91 inHg

Wind14.6 mph SW

Humidity45%

Visibility—

Dew point54°

Mon, 2655° / 48°

55 °

Niantic, Monday, 26 October

Overcast. High 55°, low 48°.

Pressure29.91 inHg

Wind17.3 mph NW

Humidity48%

Visibility—

Dew point35°

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 Niantic, 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 Niantic, 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.