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As of 05:25 CDT

Weather in Grafton, IA

36°Current weather

Grafton, Saturday, 17 October, 05:25

Clear. Feels like 31°. High 58°, low 34°.

Pressure30.47 inHg
Wind5 mph SW
Humidity91%
Visibility6.2 mi
Dew point33°
Sun, 1862° / 41°0Clear
62 °Clear

Grafton, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.24 inHg
Wind15.4 mph S
Humidity55%
Visibility6.2 mi
Dew point39°
Mon, 1962° / 44°0Overcast
62 °Overcast

Grafton, Monday, 19 October

Overcast. High 62°, low 44°.

Pressure30.30 inHg
Wind8.1 mph S
Humidity67%
Visibility6.2 mi
Dew point47°
Tue, 2065° / 45°0Mostly clear
65 °Mostly clear

Grafton, Tuesday, 20 October

Mostly clear. High 65°, low 45°.

Pressure30.30 inHg
Wind8.3 mph S
Humidity59%
Visibility6.2 mi
Dew point47°
Wed, 2169° / 49°0Clear
69 °Clear

Grafton, Wednesday, 21 October

Clear. High 69°, low 49°.

Pressure30.18 inHg
Wind9 mph S
Humidity54%
Visibility—
Dew point47°
Thu, 2270° / 49°0Clear
70 °Clear

Grafton, Thursday, 22 October

Clear. High 70°, low 49°.

Pressure30.21 inHg
Wind7.9 mph SE
Humidity57%
Visibility—
Dew point51°
Fri, 2372° / 56°0Overcast
72 °Overcast

Grafton, Friday, 23 October

Overcast. High 72°, low 56°.

Pressure30.00 inHg
Wind18.7 mph S
Humidity47%
Visibility—
Dew point47°
Sat, 2474° / 60°0.05Light rain
74 °Light rain

Grafton, Saturday, 24 October

Light rain. High 74°, low 60°.

Pressure29.97 inHg
Wind18.1 mph S
Humidity41%
Visibility—
Dew point45°
Sun, 2560° / 43°0.13Light rain
60 °Light rain

Grafton, Sunday, 25 October

Light rain. High 60°, low 43°.

Pressure30.09 inHg
Wind13.8 mph N
Humidity72%
Visibility—
Dew point40°
Mon, 2646° / 34°0Clear
46 °Clear

Grafton, Monday, 26 October

Clear. High 46°, low 34°.

Pressure30.30 inHg
Wind13.5 mph N
Humidity40%
Visibility—
Dew point20°
Tue, 2749° / 33°0.02Light rain
49 °Light rain

Grafton, Tuesday, 27 October

Light rain. High 49°, low 33°.

Pressure30.30 inHg
Wind18.9 mph S
Humidity39%
Visibility—
Dew point22°
Wed, 2855° / 42°0.84Rain
55 °Rain

Grafton, Wednesday, 28 October

Rain. High 55°, low 42°.

Pressure29.80 inHg
Wind20.6 mph SW
Humidity95%
Visibility—
Dew point46°
Thu, 2957° / 48°0.01Light rain
57 °Light rain

Grafton, Thursday, 29 October

Light rain. High 57°, low 48°.

Pressure30.06 inHg
Wind25.1 mph NW
Humidity54%
Visibility—
Dew point38°
Fri, 3056° / 46°0.58Rain
56 °Rain

Grafton, Friday, 30 October

Rain. High 56°, low 46°.

Pressure29.80 inHg
Wind21.3 mph S
Humidity68%
Visibility—
Dew point41°
Sat, 3165° / 51°0.96Rain
65 °Rain

Grafton, Saturday, 31 October

Rain. High 65°, low 51°.

Pressure29.32 inHg
Wind24.9 mph SW
Humidity95%
Visibility—
Dew point60°
Sun, 0149° / 42°0Light rain
49 °Light rain

Grafton, Sunday, 1 November

Light rain. High 49°, low 42°.

Pressure29.91 inHg
Wind19.8 mph W
Humidity60%
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 Grafton, IA 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 Grafton, IA 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.