As of 20:01 CDT

Weather in Dayton, IL

63°Current weather

Dayton, Wednesday, 14 October, 20:01

Overcast. Feels like 63°. High 67°, low 62°.

Pressure30.09 inHg
Wind11 mph E
Humidity85%
Visibility6.2 mi
Dew point58°
Thu, 1567° / 59°0.37Rain
67 °Rain

Dayton, Thursday, 15 October

Rain. High 67°, low 59°.

Pressure30.00 inHg
Wind6.6 mph E
Humidity87%
Visibility4.9 mi
Dew point59°
Fri, 1659° / 47°0.06Light rain
59 °Light rain

Dayton, Friday, 16 October

Light rain. High 59°, low 47°.

Pressure30.06 inHg
Wind15.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point42°
Sat, 1756° / 37°0Clear
56 °Clear

Dayton, Saturday, 17 October

Clear. High 56°, low 37°.

Pressure30.56 inHg
Wind2 mph NW
Humidity45%
Visibility6.2 mi
Dew point31°
Sun, 1861° / 41°0Clear
61 °Clear

Dayton, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure30.47 inHg
Wind9.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point39°
Mon, 1964° / 40°0Clear
64 °Clear

Dayton, Monday, 19 October

Clear. High 64°, low 40°.

Pressure30.42 inHg
Wind4.5 mph S
Humidity44%
Visibility—
Dew point37°
Tue, 2068° / 43°0Partly cloudy
68 °Partly cloudy

Dayton, Tuesday, 20 October

Partly cloudy. High 68°, low 43°.

Pressure30.33 inHg
Wind7.3 mph E
Humidity42%
Visibility—
Dew point38°
Wed, 2174° / 55°0Clear
74 °Clear

Dayton, Wednesday, 21 October

Clear. High 74°, low 55°.

Pressure30.21 inHg
Wind12.2 mph S
Humidity52%
Visibility—
Dew point51°
Thu, 2268° / 63°0.22Light rain
68 °Light rain

Dayton, Thursday, 22 October

Light rain. High 68°, low 63°.

Pressure29.97 inHg
Wind16.7 mph SW
Humidity78%
Visibility—
Dew point60°
Fri, 2367° / 58°0Overcast
67 °Overcast

Dayton, Friday, 23 October

Overcast. High 67°, low 58°.

Pressure30.09 inHg
Wind8 mph SE
Humidity70%
Visibility—
Dew point55°
Sat, 2472° / 51°0.06Light rain
72 °Light rain

Dayton, Saturday, 24 October

Light rain. High 72°, low 51°.

Pressure29.88 inHg
Wind18.3 mph SW
Humidity64%
Visibility—
Dew point58°
Sun, 2556° / 43°0Clear
56 °Clear

Dayton, Sunday, 25 October

Clear. High 56°, low 43°.

Pressure30.36 inHg
Wind12.5 mph W
Humidity40%
Visibility—
Dew point31°
Mon, 2654° / 40°0Clear
54 °Clear

Dayton, Monday, 26 October

Clear. High 54°, low 40°.

Pressure30.39 inHg
Wind10.3 mph NW
Humidity35%
Visibility—
Dew point25°
Tue, 2758° / 41°0Overcast
58 °Overcast

Dayton, Tuesday, 27 October

Overcast. High 58°, low 41°.

Pressure30.27 inHg
Wind12.5 mph SW
Humidity37%
Visibility—
Dew point29°
Wed, 2861° / 46°0Light rain
61 °Light rain

Dayton, Wednesday, 28 October

Light rain. High 61°, low 46°.

Pressure30.06 inHg
Wind12.1 mph SW
Humidity32%
Visibility—
Dew point29°
Thu, 2962° / 46°0.01Light rain
62 °Light rain

Dayton, Thursday, 29 October

Light rain. High 62°, low 46°.

Pressure30.03 inHg
Wind11.3 mph SW
Humidity62%
Visibility—
Dew point45°

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 Dayton, 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 Dayton, 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.