As of 05:49 CDT

Weather in Grafton, IA

64°Current weather

Grafton, Sunday, 9 August, 05:49

Heavy rain. Feels like 65°. High 80°, low 64°.

Pressure29.88 inHg
Wind5 mph S
Humidity93%
Visibility6.2 mi
Dew point62°
Mon, 1081° / 68°0Overcast
81 °Overcast

Grafton, Monday, 10 August

Overcast. High 81°, low 68°.

Pressure29.88 inHg
Wind9.5 mph SE
Humidity75%
Visibility6.2 mi
Dew point69°
Tue, 1184° / 69°0.11Rain
84 °Rain

Grafton, Tuesday, 11 August

Rain. High 84°, low 69°.

Pressure29.80 inHg
Wind4.7 mph NE
Humidity78%
Visibility6.2 mi
Dew point73°
Wed, 1278° / 63°0Mostly clear
78 °Mostly clear

Grafton, Wednesday, 12 August

Mostly clear. High 78°, low 63°.

Pressure29.91 inHg
Wind7 mph NE
Humidity59%
Visibility6.2 mi
Dew point62°
Thu, 1365° / 58°0.04Light rain
65 °Light rain

Grafton, Thursday, 13 August

Light rain. High 65°, low 58°.

Pressure30.06 inHg
Wind9.7 mph E
Humidity84%
Visibility
Dew point59°
Fri, 1472° / 55°0Overcast
72 °Overcast

Grafton, Friday, 14 August

Overcast. High 72°, low 55°.

Pressure30.15 inHg
Wind11.3 mph E
Humidity61%
Visibility
Dew point55°
Sat, 1566° / 59°0Overcast
66 °Overcast

Grafton, Saturday, 15 August

Overcast. High 66°, low 59°.

Pressure30.18 inHg
Wind10.5 mph SE
Humidity74%
Visibility
Dew point57°
Sun, 1680° / 62°0Overcast
80 °Overcast

Grafton, Sunday, 16 August

Overcast. High 80°, low 62°.

Pressure30.09 inHg
Wind7.8 mph N
Humidity74%
Visibility
Dew point65°
Mon, 1778° / 58°0Overcast
78 °Overcast

Grafton, Monday, 17 August

Overcast. High 78°, low 58°.

Pressure30.09 inHg
Wind8.4 mph SE
Humidity59%
Visibility
Dew point58°
Tue, 1885° / 63°0.06Light rain
85 °Light rain

Grafton, Tuesday, 18 August

Light rain. High 85°, low 63°.

Pressure29.91 inHg
Wind14.9 mph S
Humidity79%
Visibility
Dew point70°
Wed, 1988° / 68°0Overcast
88 °Overcast

Grafton, Wednesday, 19 August

Overcast. High 88°, low 68°.

Pressure29.80 inHg
Wind11 mph SE
Humidity69%
Visibility
Dew point71°
Thu, 2089° / 70°0.01Light rain
89 °Light rain

Grafton, Thursday, 20 August

Light rain. High 89°, low 70°.

Pressure29.80 inHg
Wind12.4 mph NW
Humidity62%
Visibility
Dew point71°
Fri, 2179° / 63°0Overcast
79 °Overcast

Grafton, Friday, 21 August

Overcast. High 79°, low 63°.

Pressure29.97 inHg
Wind8.4 mph N
Humidity63%
Visibility
Dew point62°
Sat, 2291° / 67°0.07Light rain
91 °Light rain

Grafton, Saturday, 22 August

Light rain. High 91°, low 67°.

Pressure29.77 inHg
Wind16.6 mph SE
Humidity63%
Visibility
Dew point67°
Sun, 2380° / 68°0.15Rain
80 °Rain

Grafton, Sunday, 23 August

Rain. High 80°, low 68°.

Pressure29.88 inHg
Wind11.6 mph NE
Humidity70%
Visibility
Dew point68°
Mon, 2474° / 63°0.26Rain
74 °Rain

Grafton, Monday, 24 August

Rain. High 74°, low 63°.

Pressure30.03 inHg
Wind11.6 mph E
Humidity92%
Visibility
Dew point67°

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.