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As of 21:25 CDT

Weather in Dayton, IL

68°Current weather

Dayton, Sunday, 11 October, 21:25

Clear. Feels like 68°. High 80°, low 54°.

Pressure29.91 inHg
Wind6.2 mph S
Humidity70%
Visibility6.2 mi
Dew point58°
Mon, 1286° / 62°0Clear
86 °Clear

Dayton, Monday, 12 October

Clear. High 86°, low 62°.

Pressure29.85 inHg
Wind11.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point62°
Tue, 1385° / 68°0.01Light rain
85 °Light rain

Dayton, Tuesday, 13 October

Light rain. High 85°, low 68°.

Pressure29.83 inHg
Wind9.5 mph W
Humidity64%
Visibility6.2 mi
Dew point66°
Wed, 1473° / 61°0.59Heavy rain
73 °Heavy rain

Dayton, Wednesday, 14 October

Heavy rain. High 73°, low 61°.

Pressure30.09 inHg
Wind5.2 mph NE
Humidity62%
Visibility6.2 mi
Dew point57°
Thu, 1564° / 60°0.51Rain
64 °Rain

Dayton, Thursday, 15 October

Rain. High 64°, low 60°.

Pressure30.03 inHg
Wind6.2 mph E
Humidity94%
Visibility1.9 mi
Dew point61°
Fri, 1660° / 47°0.06Light rain
60 °Light rain

Dayton, Friday, 16 October

Light rain. High 60°, low 47°.

Pressure30.39 inHg
Wind20 mph NW
Humidity46%
Visibility—
Dew point37°
Sat, 1756° / 38°0Clear
56 °Clear

Dayton, Saturday, 17 October

Clear. High 56°, low 38°.

Pressure30.50 inHg
Wind8.8 mph S
Humidity43%
Visibility—
Dew point32°
Sun, 1860° / 38°0Clear
60 °Clear

Dayton, Sunday, 18 October

Clear. High 60°, low 38°.

Pressure30.39 inHg
Wind17 mph SW
Humidity31%
Visibility—
Dew point24°
Mon, 1969° / 45°0Overcast
69 °Overcast

Dayton, Monday, 19 October

Overcast. High 69°, low 45°.

Pressure30.30 inHg
Wind13.8 mph SW
Humidity40%
Visibility—
Dew point39°
Tue, 2073° / 55°0Overcast
73 °Overcast

Dayton, Tuesday, 20 October

Overcast. High 73°, low 55°.

Pressure30.15 inHg
Wind10.8 mph S
Humidity54%
Visibility—
Dew point52°
Wed, 2176° / 61°0.15Rain
76 °Rain

Dayton, Wednesday, 21 October

Rain. High 76°, low 61°.

Pressure29.97 inHg
Wind21.4 mph S
Humidity57%
Visibility—
Dew point58°
Thu, 2267° / 52°0.74Rain
67 °Rain

Dayton, Thursday, 22 October

Rain. High 67°, low 52°.

Pressure29.77 inHg
Wind20.7 mph S
Humidity58%
Visibility—
Dew point45°
Fri, 2349° / 42°0Mostly clear
49 °Mostly clear

Dayton, Friday, 23 October

Mostly clear. High 49°, low 42°.

Pressure30.00 inHg
Wind17 mph NW
Humidity55%
Visibility—
Dew point32°
Sat, 2451° / 35°0Mostly clear
51 °Mostly clear

Dayton, Saturday, 24 October

Mostly clear. High 51°, low 35°.

Pressure30.15 inHg
Wind9.7 mph NW
Humidity48%
Visibility—
Dew point28°
Sun, 2549° / 44°0.23Light rain
49 °Light rain

Dayton, Sunday, 25 October

Light rain. High 49°, low 44°.

Pressure29.80 inHg
Wind12.6 mph E
Humidity66%
Visibility—
Dew point38°
Mon, 2654° / 47°0Overcast
54 °Overcast

Dayton, Monday, 26 October

Overcast. High 54°, low 47°.

Pressure30.00 inHg
Wind8 mph N
Humidity62%
Visibility—
Dew point40°

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.