As of 08:58 EDT

Weather in Decatur, MI

71°Current weather

Decatur, Tuesday, 13 October, 08:58

Clear. Feels like 71°. High 79°, low 66°.

Pressure29.77 inHg
Wind2 mph W
Humidity76%
Visibility6.2 mi
Dew point63°

Monthly outlook for Decatur, MI: average high 62°, average low 50.1°. That is 2.3° above the climate normal for October. Precipitation is expected on 5 days (about 2.5 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 13 October (79.1°), the coolest 27 October (39.6°).

62°/50.1°
Average high / low
+2.3°
Above normal
5 / 6
Wet days / normal
2.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October65.1°58.8°+3.5°
23 October – 1 November56.9°55.7°+0.7°
2 November – 11 Novemberat normal51.1°—

October records over 66 years

85.5°7 October 2007All-time high
24.3°27 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Dowagiac (11 mi).

Wed, 1472° / 60°0.08Light rain
72 °Light rain

Decatur, Wednesday, 14 October

Light rain. High 72°, low 60°.

Pressure30.06 inHg
Wind7.2 mph NE
Humidity67%
Visibility6.2 mi
Dew point55°
Thu, 1560° / 54°1.28Heavy rain
60 °Heavy rain

Decatur, Thursday, 15 October

Heavy rain. High 60°, low 54°.

Pressure30.12 inHg
Wind9.9 mph E
Humidity96%
Visibility1.4 mi
Dew point54°
Fri, 1660° / 46°0.79Heavy rain
60 °Heavy rain

Decatur, Friday, 16 October

Heavy rain. High 60°, low 46°.

Pressure29.97 inHg
Wind18.5 mph NW
Humidity74%
Visibility5.9 mi
Dew point43°
Sat, 1755° / 41°0Mostly clear
55 °Mostly clear

Decatur, Saturday, 17 October

Mostly clear. High 55°, low 41°.

Pressure30.47 inHg
Wind9.5 mph N
Humidity56%
Visibility—
Dew point38°
Sun, 1861° / 44°0Clear
61 °Clear

Decatur, Sunday, 18 October

Clear. High 61°, low 44°.

Pressure30.30 inHg
Wind13.1 mph SW
Humidity48%
Visibility—
Dew point38°
Mon, 1958° / 50°0.01Light rain
58 °Light rain

Decatur, Monday, 19 October

Light rain. High 58°, low 50°.

Pressure30.27 inHg
Wind7.8 mph S
Humidity57%
Visibility—
Dew point41°
Tue, 2062° / 53°0.07Light rain
62 °Light rain

Decatur, Tuesday, 20 October

Light rain. High 62°, low 53°.

Pressure30.30 inHg
Wind6.5 mph S
Humidity86%
Visibility—
Dew point57°
Wed, 2170° / 58°0.01Light rain
70 °Light rain

Decatur, Wednesday, 21 October

Light rain. High 70°, low 58°.

Pressure30.27 inHg
Wind8.9 mph S
Humidity70%
Visibility—
Dew point57°
Thu, 2274° / 57°0Overcast
74 °Overcast

Decatur, Thursday, 22 October

Overcast. High 74°, low 57°.

Pressure30.12 inHg
Wind12.9 mph S
Humidity54%
Visibility—
Dew point54°
Fri, 2366° / 58°0.03Light rain
66 °Light rain

Decatur, Friday, 23 October

Light rain. High 66°, low 58°.

Pressure29.97 inHg
Wind19.6 mph S
Humidity74%
Visibility—
Dew point54°
Sat, 2456° / 46°0Overcast
56 °Overcast

Decatur, Saturday, 24 October

Overcast. High 56°, low 46°.

Pressure30.18 inHg
Wind16.1 mph W
Humidity52%
Visibility—
Dew point38°
Sun, 2554° / 42°0Clear
54 °Clear

Decatur, Sunday, 25 October

Clear. High 54°, low 42°.

Pressure30.15 inHg
Wind12.6 mph NW
Humidity45%
Visibility—
Dew point32°
Mon, 2655° / 41°0Clear
55 °Clear

Decatur, Monday, 26 October

Clear. High 55°, low 41°.

Pressure30.27 inHg
Wind11.5 mph NW
Humidity44%
Visibility—
Dew point32°
Tue, 2757° / 40°0Partly cloudy
57 °Partly cloudy

Decatur, Tuesday, 27 October

Partly cloudy. High 57°, low 40°.

Pressure30.18 inHg
Wind12.5 mph W
Humidity48%
Visibility—
Dew point35°
Wed, 2854° / 45°0Overcast
54 °Overcast

Decatur, Wednesday, 28 October

Overcast. High 54°, low 45°.

Pressure29.91 inHg
Wind17.8 mph W
Humidity54%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2955° / 42°0.05Climate normal
55 °Climate normal

Decatur, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.05 in
Chance of precipitation23%
Record high76° (2024)
Record low28° (1965)
Fri, 3056° / 42°0.09Climate normal
56 °Climate normal

Decatur, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation32%
Record high75° (2024)
Record low28° (1980)
Sat, 3155° / 43°0.12Climate normal
55 °Climate normal

Decatur, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low43°
Average precipitation0.12 in
Chance of precipitation40%
Record high74° (1974)
Record low25° (1988)
Sun, 0154° / 42°0.16Climate normal
54 °Climate normal

Decatur, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.16 in
Chance of precipitation45%
Record high73° (2016)
Record low27° (2023)
Mon, 0254° / 41°0.13Climate normal
54 °Climate normal

Decatur, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.13 in
Chance of precipitation42%
Record high74° (1961)
Record low26° (2014)
Tue, 0352° / 40°0.07Climate normal
52 °Climate normal

Decatur, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (1987)
Record low22° (1991)
Wed, 0452° / 41°0.1Climate normal
52 °Climate normal

Decatur, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.1 in
Chance of precipitation33%
Record high71° (2015)
Record low21° (1991)
Thu, 0552° / 40°0.12Climate normal
52 °Climate normal

Decatur, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.12 in
Chance of precipitation33%
Record high73° (1978)
Record low19° (1991)
Fri, 0652° / 38°0.08Climate normal
52 °Climate normal

Decatur, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation33%
Record high73° (1975)
Record low27° (1995)
Sat, 0750° / 39°0.07Climate normal
50 °Climate normal

Decatur, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high68° (2020)
Record low24° (1991)
Sun, 0851° / 38°0.06Climate normal
51 °Climate normal

Decatur, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.06 in
Chance of precipitation32%
Record high73° (2020)
Record low20° (1967)
Mon, 0951° / 38°0.13Climate normal
51 °Climate normal

Decatur, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation37%
Record high74° (2020)
Record low18° (1991)
Tue, 1050° / 38°0.15Climate normal
50 °Climate normal

Decatur, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.15 in
Chance of precipitation48%
Record high73° (2020)
Record low21° (2025)
Wed, 1147° / 36°0.1Climate normal
47 °Climate normal

Decatur, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.1 in
Chance of precipitation43%
Record high69° (1964)
Record low23° (2017)

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, MI 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, MI 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.