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As of 17:33 CDT

Weather in Calvin, IL

66°Current weather

Calvin, Saturday, 10 October, 17:33

Overcast. Feels like 66°. High 72°, low 56°.

Pressure30.00 inHg
Wind7.6 mph NE
Humidity81%
Visibility6.2 mi
Dew point60°
Sun, 1181° / 52°0Clear
81 °Clear

Calvin, Sunday, 11 October

Clear. High 81°, low 52°.

Pressure29.97 inHg
Wind7.5 mph NW
Humidity59%
Visibility6.2 mi
Dew point57°
Mon, 1287° / 57°0Mostly clear
87 °Mostly clear

Calvin, Monday, 12 October

Mostly clear. High 87°, low 57°.

Pressure29.97 inHg
Wind9.4 mph SW
Humidity49%
Visibility6.2 mi
Dew point61°
Tue, 1388° / 67°0Clear
88 °Clear

Calvin, Tuesday, 13 October

Clear. High 88°, low 67°.

Pressure29.94 inHg
Wind10.6 mph SW
Humidity46%
Visibility6.2 mi
Dew point61°
Wed, 1483° / 73°0.2Rain
83 °Rain

Calvin, Wednesday, 14 October

Rain. High 83°, low 73°.

Pressure30.00 inHg
Wind6 mph SW
Humidity83%
Visibility6.2 mi
Dew point71°
Thu, 1583° / 67°0.3Rain
83 °Rain

Calvin, Thursday, 15 October

Rain. High 83°, low 67°.

Pressure30.09 inHg
Wind9.3 mph E
Humidity72%
Visibility—
Dew point69°
Fri, 1670° / 51°0.28Rain
70 °Rain

Calvin, Friday, 16 October

Rain. High 70°, low 51°.

Pressure30.09 inHg
Wind19 mph NW
Humidity51%
Visibility—
Dew point46°
Sat, 1745° / 36°0Overcast
45 °Overcast

Calvin, Saturday, 17 October

Overcast. High 45°, low 36°.

Pressure30.30 inHg
Wind18.7 mph NW
Humidity51%
Visibility—
Dew point23°
Sun, 1850° / 33°0Clear
50 °Clear

Calvin, Sunday, 18 October

Clear. High 50°, low 33°.

Pressure30.53 inHg
Wind13.4 mph NW
Humidity31%
Visibility—
Dew point17°
Mon, 1954° / 33°0Clear
54 °Clear

Calvin, Monday, 19 October

Clear. High 54°, low 33°.

Pressure30.65 inHg
Wind6.7 mph SE
Humidity28%
Visibility—
Dew point17°
Tue, 2060° / 37°0Clear
60 °Clear

Calvin, Tuesday, 20 October

Clear. High 60°, low 37°.

Pressure30.45 inHg
Wind7 mph S
Humidity32%
Visibility—
Dew point25°
Wed, 2166° / 42°0Clear
66 °Clear

Calvin, Wednesday, 21 October

Clear. High 66°, low 42°.

Pressure30.36 inHg
Wind8 mph S
Humidity31%
Visibility—
Dew point30°
Thu, 2269° / 46°0Clear
69 °Clear

Calvin, Thursday, 22 October

Clear. High 69°, low 46°.

Pressure30.33 inHg
Wind10.6 mph S
Humidity29%
Visibility—
Dew point31°
Fri, 2356° / 50°0.2Rain
56 °Rain

Calvin, Friday, 23 October

Rain. High 56°, low 50°.

Pressure30.18 inHg
Wind10.7 mph N
Humidity88%
Visibility—
Dew point47°
Sat, 2452° / 42°0.03Light rain
52 °Light rain

Calvin, Saturday, 24 October

Light rain. High 52°, low 42°.

Pressure30.12 inHg
Wind12.3 mph N
Humidity76%
Visibility—
Dew point42°
Sun, 2558° / 50°0.04Light rain
58 °Light rain

Calvin, Sunday, 25 October

Light rain. High 58°, low 50°.

Pressure30.03 inHg
Wind13.5 mph N
Humidity71%
Visibility—
Dew point47°

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 Calvin, 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 Calvin, 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.