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As of 08:22 CDT

Weather in Grafton, IA

42°Current weather

Grafton, Sunday, 18 October, 08:22

Clear. Feels like 40°. High 63°, low 42°.

Pressure30.21 inHg
Wind4 mph S
Humidity81%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 41°0Overcast
62 °Overcast

Grafton, Monday, 19 October

Overcast. High 62°, low 41°.

Pressure30.33 inHg
Wind5.2 mph S
Humidity66%
Visibility6.2 mi
Dew point46°
Tue, 2064° / 43°0Mostly clear
64 °Mostly clear

Grafton, Tuesday, 20 October

Mostly clear. High 64°, low 43°.

Pressure30.33 inHg
Wind9.2 mph S
Humidity62%
Visibility6.2 mi
Dew point47°
Wed, 2168° / 47°0Clear
68 °Clear

Grafton, Wednesday, 21 October

Clear. High 68°, low 47°.

Pressure30.24 inHg
Wind5.5 mph S
Humidity65%
Visibility6.2 mi
Dew point51°
Thu, 2269° / 50°0Clear
69 °Clear

Grafton, Thursday, 22 October

Clear. High 69°, low 50°.

Pressure30.27 inHg
Wind8.5 mph S
Humidity56%
Visibility—
Dew point49°
Fri, 2364° / 51°0.01Light rain
64 °Light rain

Grafton, Friday, 23 October

Light rain. High 64°, low 51°.

Pressure30.21 inHg
Wind16.6 mph SE
Humidity59%
Visibility—
Dew point47°
Sat, 2464° / 51°0.29Rain
64 °Rain

Grafton, Saturday, 24 October

Rain. High 64°, low 51°.

Pressure30.06 inHg
Wind18.8 mph S
Humidity73%
Visibility—
Dew point54°
Sun, 2553° / 39°0Clear
53 °Clear

Grafton, Sunday, 25 October

Clear. High 53°, low 39°.

Pressure30.50 inHg
Wind8.6 mph NW
Humidity34%
Visibility—
Dew point22°
Mon, 2648° / 41°0.32Rain
48 °Rain

Grafton, Monday, 26 October

Rain. High 48°, low 41°.

Pressure30.27 inHg
Wind9.9 mph S
Humidity91%
Visibility—
Dew point43°
Tue, 2761° / 48°0.01Light rain
61 °Light rain

Grafton, Tuesday, 27 October

Light rain. High 61°, low 48°.

Pressure30.18 inHg
Wind12.6 mph S
Humidity75%
Visibility—
Dew point49°
Wed, 2857° / 51°0.18Light rain
57 °Light rain

Grafton, Wednesday, 28 October

Light rain. High 57°, low 51°.

Pressure29.80 inHg
Wind16.9 mph S
Humidity89%
Visibility—
Dew point51°
Thu, 2960° / 49°0Clear
60 °Clear

Grafton, Thursday, 29 October

Clear. High 60°, low 49°.

Pressure29.77 inHg
Wind12.7 mph W
Humidity46%
Visibility—
Dew point37°
Fri, 3059° / 46°0.11Light rain
59 °Light rain

Grafton, Friday, 30 October

Light rain. High 59°, low 46°.

Pressure29.62 inHg
Wind19.9 mph SE
Humidity60%
Visibility—
Dew point42°
Sat, 3148° / 36°0.09Snow
48 °Snow

Grafton, Saturday, 31 October

Snow. High 48°, low 36°.

Pressure29.38 inHg
Wind27.5 mph SW
Humidity67%
Visibility—
Dew point30°
Sun, 0146° / 35°0Mostly clear
46 °Mostly clear

Grafton, Sunday, 1 November

Mostly clear. High 46°, low 35°.

Pressure30.21 inHg
Wind22.8 mph W
Humidity50%
Visibility—
Dew point24°
Mon, 0253° / 36°0Overcast
53 °Overcast

Grafton, Monday, 2 November

Overcast. High 53°, low 36°.

Pressure30.18 inHg
Wind20.1 mph S
Humidity46%
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 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.