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As of 15:42 EDT

Weather in Decatur, OH

85°Current weather

Decatur, Saturday, 8 August, 15:42

Overcast. Feels like 89°. High 86°, low 70°.

Pressure30.00 inHg
Wind10.3 mph SW
Humidity56%
Visibility6.2 mi
Dew point68°
Sun, 0988° / 71°0.1Light rain
88 °Light rain

Decatur, Sunday, 9 August

Light rain. High 88°, low 71°.

Pressure30.06 inHg
Wind5.5 mph S
Humidity57%
Visibility6.2 mi
Dew point70°
Mon, 1096° / 71°0Clear
96 °Clear

Decatur, Monday, 10 August

Clear. High 96°, low 71°.

Pressure30.03 inHg
Wind11.6 mph SW
Humidity46%
Visibility6.2 mi
Dew point67°
Tue, 1195° / 67°0.23Rain
95 °Rain

Decatur, Tuesday, 11 August

Rain. High 95°, low 67°.

Pressure30.03 inHg
Wind6.8 mph S
Humidity71%
Visibility6.2 mi
Dew point71°
Wed, 1294° / 65°2.24Heavy rain
94 °Heavy rain

Decatur, Wednesday, 12 August

Heavy rain. High 94°, low 65°.

Pressure29.83 inHg
Wind9.4 mph W
Humidity62%
Visibility6.2 mi
Dew point71°
Thu, 1378° / 62°0.78Rain
78 °Rain

Decatur, Thursday, 13 August

Rain. High 78°, low 62°.

Pressure29.88 inHg
Wind11.6 mph W
Humidity95%
Visibility—
Dew point69°
Fri, 1477° / 58°0.03Light rain
77 °Light rain

Decatur, Friday, 14 August

Light rain. High 77°, low 58°.

Pressure30.06 inHg
Wind10.4 mph N
Humidity47%
Visibility—
Dew point53°
Sat, 1575° / 54°0Overcast
75 °Overcast

Decatur, Saturday, 15 August

Overcast. High 75°, low 54°.

Pressure30.27 inHg
Wind7.8 mph N
Humidity42%
Visibility—
Dew point48°
Sun, 1681° / 54°0Partly cloudy
81 °Partly cloudy

Decatur, Sunday, 16 August

Partly cloudy. High 81°, low 54°.

Pressure30.24 inHg
Wind4.9 mph E
Humidity38%
Visibility—
Dew point49°
Mon, 1786° / 58°0.08Light rain
86 °Light rain

Decatur, Monday, 17 August

Light rain. High 86°, low 58°.

Pressure30.06 inHg
Wind6.9 mph SW
Humidity43%
Visibility—
Dew point58°
Tue, 1876° / 69°0.16Light rain
76 °Light rain

Decatur, Tuesday, 18 August

Light rain. High 76°, low 69°.

Pressure29.97 inHg
Wind7.4 mph SW
Humidity97%
Visibility—
Dew point71°
Wed, 1985° / 65°0Mostly clear
85 °Mostly clear

Decatur, Wednesday, 19 August

Mostly clear. High 85°, low 65°.

Pressure29.97 inHg
Wind6.2 mph NE
Humidity41%
Visibility—
Dew point55°
Thu, 2082° / 65°0.15Light rain
82 °Light rain

Decatur, Thursday, 20 August

Light rain. High 82°, low 65°.

Pressure29.88 inHg
Wind8.8 mph SW
Humidity63%
Visibility—
Dew point66°
Fri, 2182° / 65°0.11Light rain
82 °Light rain

Decatur, Friday, 21 August

Light rain. High 82°, low 65°.

Pressure29.85 inHg
Wind8.1 mph N
Humidity64%
Visibility—
Dew point67°
Sat, 2283° / 61°0Partly cloudy
83 °Partly cloudy

Decatur, Saturday, 22 August

Partly cloudy. High 83°, low 61°.

Pressure29.88 inHg
Wind9.9 mph N
Humidity46%
Visibility—
Dew point58°
Sun, 2373° / 57°0Overcast
73 °Overcast

Decatur, Sunday, 23 August

Overcast. High 73°, low 57°.

Pressure30.12 inHg
Wind10.9 mph NE
Humidity38%
Visibility—
Dew point43°

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 Decatur, OH 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 Decatur, OH 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.