As of 01:26 CDT

Weather in Greenwich, IL

43°

Greenwich, Saturday, 17 October, 01:26

Clear. Feels like 38°. High 56°, low 39°.

Pressure30.42 inHg

Wind9.2 mph N

Humidity81%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Sun, 1863° / 42°

63 °

Greenwich, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.47 inHg

Wind10.7 mph SW

Humidity43%

Visibility6.2 mi

Dew point36°

Mon, 1965° / 41°

65 °

Greenwich, Monday, 19 October

Clear. High 65°, low 41°.

Pressure30.42 inHg

Wind3.1 mph S

Humidity49%

Visibility6.2 mi

Dew point42°

Tue, 2067° / 42°

67 °

Greenwich, Tuesday, 20 October

Clear. High 67°, low 42°.

Pressure30.39 inHg

Wind3.3 mph SE

Humidity52%

Visibility6.2 mi

Dew point45°

Wed, 2170° / 45°

70 °

Greenwich, Wednesday, 21 October

Clear. High 70°, low 45°.

Pressure30.27 inHg

Wind4.2 mph SE

Humidity45%

Visibility—

Dew point43°

Thu, 2271° / 48°

71 °

Greenwich, Thursday, 22 October

Partly cloudy. High 71°, low 48°.

Pressure30.18 inHg

Wind4.1 mph E

Humidity44%

Visibility—

Dew point43°

Fri, 2373° / 58°

73 °

Greenwich, Friday, 23 October

Mostly clear. High 73°, low 58°.

Pressure30.24 inHg

Wind7.6 mph SE

Humidity32%

Visibility—

Dew point39°

Sat, 2473° / 54°

73 °

Greenwich, Saturday, 24 October

Overcast. High 73°, low 54°.

Pressure30.21 inHg

Wind11 mph S

Humidity27%

Visibility—

Dew point33°

Sun, 2560° / 50°

60 °

Greenwich, Sunday, 25 October

Overcast. High 60°, low 50°.

Pressure30.30 inHg

Wind13.9 mph NE

Humidity44%

Visibility—

Dew point37°

Mon, 2656° / 48°

0.01

56 °

Greenwich, Monday, 26 October

Light rain. High 56°, low 48°.

Pressure30.36 inHg

Wind8.8 mph NE

Humidity65%

Visibility—

Dew point39°

Tue, 2765° / 55°

0.04

65 °

Greenwich, Tuesday, 27 October

Light rain. High 65°, low 55°.

Pressure30.12 inHg

Wind10.3 mph W

Humidity63%

Visibility—

Dew point50°

Wed, 2858° / 46°

58 °

Greenwich, Wednesday, 28 October

Partly cloudy. High 58°, low 46°.

Pressure30.12 inHg

Wind11.8 mph N

Humidity41%

Visibility—

Dew point33°

Thu, 2954° / 45°

0.42

54 °

Greenwich, Thursday, 29 October

Rain. High 54°, low 45°.

Pressure30.00 inHg

Wind14 mph SE

Humidity48%

Visibility—

Dew point34°

Fri, 3067° / 53°

0.24

67 °

Greenwich, Friday, 30 October

Rain. High 67°, low 53°.

Pressure29.53 inHg

Wind17.2 mph SW

Humidity62%

Visibility—

Dew point52°

Sat, 3154° / 46°

54 °

Greenwich, Saturday, 31 October

Mostly clear. High 54°, low 46°.

Pressure30.09 inHg

Wind17.9 mph NW

Humidity50%

Visibility—

Dew point35°

Sun, 0158° / 42°

58 °

Greenwich, Sunday, 1 November

Clear. High 58°, low 42°.

Pressure30.12 inHg

Wind6.5 mph NW

Humidity49%

Visibility—

Dew point37°

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 Greenwich, 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 Greenwich, 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.