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As of 09:46 CDT

Weather in Calvin, IL

76°Current weather

Calvin, Tuesday, 13 October, 09:46

Clear. Feels like 76°. High 89°, low 65°.

Pressure29.97 inHg
Wind7.6 mph SW
Humidity59%
Visibility6.2 mi
Dew point61°
Wed, 1483° / 67°0.25Rain
83 °Rain

Calvin, Wednesday, 14 October

Rain. High 83°, low 67°.

Pressure30.03 inHg
Wind8 mph SW
Humidity83%
Visibility4.9 mi
Dew point71°
Thu, 1584° / 66°0.29Rain
84 °Rain

Calvin, Thursday, 15 October

Rain. High 84°, low 66°.

Pressure30.03 inHg
Wind11.6 mph SW
Humidity79%
Visibility4.2 mi
Dew point72°
Fri, 1674° / 54°0.08Light rain
74 °Light rain

Calvin, Friday, 16 October

Light rain. High 74°, low 54°.

Pressure30.18 inHg
Wind20.7 mph NW
Humidity38%
Visibility6.2 mi
Dew point35°
Sat, 1760° / 45°0Clear
60 °Clear

Calvin, Saturday, 17 October

Clear. High 60°, low 45°.

Pressure30.50 inHg
Wind12.3 mph N
Humidity48%
Visibility—
Dew point37°
Sun, 1865° / 43°0Clear
65 °Clear

Calvin, Sunday, 18 October

Clear. High 65°, low 43°.

Pressure30.39 inHg
Wind6.5 mph S
Humidity43%
Visibility—
Dew point38°
Mon, 1976° / 51°0Overcast
76 °Overcast

Calvin, Monday, 19 October

Overcast. High 76°, low 51°.

Pressure30.21 inHg
Wind9.9 mph S
Humidity54%
Visibility—
Dew point52°
Tue, 2066° / 58°0.24Rain
66 °Rain

Calvin, Tuesday, 20 October

Rain. High 66°, low 58°.

Pressure30.24 inHg
Wind7.9 mph S
Humidity84%
Visibility—
Dew point60°
Wed, 2169° / 61°0.17Light rain
69 °Light rain

Calvin, Wednesday, 21 October

Light rain. High 69°, low 61°.

Pressure30.24 inHg
Wind8.1 mph E
Humidity90%
Visibility—
Dew point62°
Thu, 2281° / 62°0Overcast
81 °Overcast

Calvin, Thursday, 22 October

Overcast. High 81°, low 62°.

Pressure30.12 inHg
Wind16.9 mph S
Humidity46%
Visibility—
Dew point55°
Fri, 2381° / 64°0Clear
81 °Clear

Calvin, Friday, 23 October

Clear. High 81°, low 64°.

Pressure30.09 inHg
Wind21.1 mph S
Humidity44%
Visibility—
Dew point53°
Sat, 2468° / 60°0.04Light rain
68 °Light rain

Calvin, Saturday, 24 October

Light rain. High 68°, low 60°.

Pressure30.33 inHg
Wind9.2 mph NW
Humidity49%
Visibility—
Dew point42°
Sun, 2565° / 53°0Overcast
65 °Overcast

Calvin, Sunday, 25 October

Overcast. High 65°, low 53°.

Pressure30.27 inHg
Wind8.8 mph N
Humidity51%
Visibility—
Dew point40°
Mon, 2662° / 48°0Overcast
62 °Overcast

Calvin, Monday, 26 October

Overcast. High 62°, low 48°.

Pressure30.18 inHg
Wind13.4 mph N
Humidity31%
Visibility—
Dew point29°
Tue, 2761° / 44°0Overcast
61 °Overcast

Calvin, Tuesday, 27 October

Overcast. High 61°, low 44°.

Pressure30.24 inHg
Wind8.6 mph E
Humidity35%
Visibility—
Dew point29°
Wed, 2869° / 48°0.01Light rain
69 °Light rain

Calvin, Wednesday, 28 October

Light rain. High 69°, low 48°.

Pressure30.12 inHg
Wind11.5 mph S
Humidity27%
Visibility—
Dew point30°

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.