As of 21:15 CDT

Weather in Niantic, IL

78°

Niantic, Monday, 12 October, 21:15

Clear. Feels like 79°. High 89°, low 62°.

Pressure29.80 inHg

Wind10.8 mph S

Humidity63%

Visibility6.2 mi

Dew point64°

See detailed hourly forecast

Tue, 1390° / 68°

90 °

Niantic, Tuesday, 13 October

Clear. High 90°, low 68°.

Pressure29.88 inHg

Wind8.5 mph SW

Humidity52%

Visibility6.2 mi

Dew point64°

Wed, 1479° / 65°

0.04

79 °

Niantic, Wednesday, 14 October

Light rain. High 79°, low 65°.

Pressure30.03 inHg

Wind5.1 mph NE

Humidity63%

Visibility6.2 mi

Dew point64°

Thu, 1577° / 65°

0.65

77 °

Niantic, Thursday, 15 October

Rain. High 77°, low 65°.

Pressure29.97 inHg

Wind8.4 mph S

Humidity96%

Visibility1.4 mi

Dew point71°

Fri, 1660° / 50°

0.05

60 °

Niantic, Friday, 16 October

Light rain. High 60°, low 50°.

Pressure30.30 inHg

Wind21.4 mph NW

Humidity49%

Visibility6.2 mi

Dew point36°

Sat, 1760° / 40°

60 °

Niantic, Saturday, 17 October

Clear. High 60°, low 40°.

Pressure30.50 inHg

Wind6.9 mph S

Humidity39%

Visibility—

Dew point31°

Sun, 1866° / 45°

66 °

Niantic, Sunday, 18 October

Overcast. High 66°, low 45°.

Pressure30.30 inHg

Wind10.8 mph S

Humidity33%

Visibility—

Dew point31°

Mon, 1969° / 50°

0.02

69 °

Niantic, Monday, 19 October

Light rain. High 69°, low 50°.

Pressure30.21 inHg

Wind9.3 mph S

Humidity46%

Visibility—

Dew point44°

Tue, 2072° / 58°

0.22

72 °

Niantic, Tuesday, 20 October

Light rain. High 72°, low 58°.

Pressure30.15 inHg

Wind11.1 mph SE

Humidity64%

Visibility—

Dew point57°

Wed, 2173° / 58°

73 °

Niantic, Wednesday, 21 October

Partly cloudy. High 73°, low 58°.

Pressure30.18 inHg

Wind13 mph S

Humidity59%

Visibility—

Dew point55°

Thu, 2280° / 62°

80 °

Niantic, Thursday, 22 October

Overcast. High 80°, low 62°.

Pressure30.03 inHg

Wind22.2 mph S

Humidity50%

Visibility—

Dew point56°

Fri, 2370° / 54°

0.18

70 °

Niantic, Friday, 23 October

Rain. High 70°, low 54°.

Pressure30.09 inHg

Wind24.4 mph S

Humidity51%

Visibility—

Dew point46°

Sat, 2464° / 49°

64 °

Niantic, Saturday, 24 October

Overcast. High 64°, low 49°.

Pressure30.33 inHg

Wind10.8 mph N

Humidity43%

Visibility—

Dew point39°

Sun, 2557° / 45°

57 °

Niantic, Sunday, 25 October

Clear. High 57°, low 45°.

Pressure30.30 inHg

Wind9.2 mph N

Humidity38%

Visibility—

Dew point30°

Mon, 2660° / 44°

60 °

Niantic, Monday, 26 October

Overcast. High 60°, low 44°.

Pressure30.09 inHg

Wind10 mph SW

Humidity51%

Visibility—

Dew point37°

Tue, 2765° / 44°

0.05

65 °

Niantic, Tuesday, 27 October

Light rain. High 65°, low 44°.

Pressure29.68 inHg

Wind16.5 mph W

Humidity49%

Visibility—

Dew point41°

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.