As of 03:12 CDT

Weather in Greencastle, MO

34°Current weather

Greencastle, Saturday, 17 October, 03:12

Clear. Feels like 29°. High 55°, low 34°.

Pressure30.53 inHg
Wind5.9 mph N
Humidity91%
Visibility6.2 mi
Dew point32°

Monthly outlook for Greencastle, MO: average high 63.7°, average low 47.5°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 24 October (73.9°), the coolest 17 October (34.4°).

63.7°/47.5°
Average high / low
+2.4°
Above normal
5 / 4
Wet days / normal
2.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October65.6°60.6°+2.8°
27 October – 5 November60.5°55.7°+2.7°
6 November – 15 Novemberat normal50.8°—

October records over 66 years

91.4°6 October 1963All-time high
18.9°27 October 1997All-time low

Climate normals and records are computed from the nearest reference point — Lemons (14 mi).

Sun, 1862° / 41°0Clear
62 °Clear

Greencastle, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.39 inHg
Wind13 mph S
Humidity59%
Visibility6.2 mi
Dew point44°
Mon, 1965° / 44°0Overcast
65 °Overcast

Greencastle, Monday, 19 October

Overcast. High 65°, low 44°.

Pressure30.36 inHg
Wind7.4 mph S
Humidity56%
Visibility6.2 mi
Dew point45°
Tue, 2068° / 46°0Clear
68 °Clear

Greencastle, Tuesday, 20 October

Clear. High 68°, low 46°.

Pressure30.30 inHg
Wind6.7 mph S
Humidity57%
Visibility6.2 mi
Dew point48°
Wed, 2170° / 53°0.09Light rain
70 °Light rain

Greencastle, Wednesday, 21 October

Light rain. High 70°, low 53°.

Pressure30.24 inHg
Wind8.1 mph S
Humidity50%
Visibility—
Dew point46°
Thu, 2272° / 52°0.07Light rain
72 °Light rain

Greencastle, Thursday, 22 October

Light rain. High 72°, low 52°.

Pressure30.15 inHg
Wind7 mph S
Humidity57%
Visibility—
Dew point52°
Fri, 2373° / 56°0Partly cloudy
73 °Partly cloudy

Greencastle, Friday, 23 October

Partly cloudy. High 73°, low 56°.

Pressure30.15 inHg
Wind12.3 mph S
Humidity44%
Visibility—
Dew point47°
Sat, 2474° / 57°0Overcast
74 °Overcast

Greencastle, Saturday, 24 October

Overcast. High 74°, low 57°.

Pressure30.15 inHg
Wind11.8 mph SW
Humidity46%
Visibility—
Dew point49°
Sun, 2555° / 49°0.04Light rain
55 °Light rain

Greencastle, Sunday, 25 October

Light rain. High 55°, low 49°.

Pressure30.39 inHg
Wind12.2 mph E
Humidity63%
Visibility—
Dew point40°
Mon, 2663° / 48°0Overcast
63 °Overcast

Greencastle, Monday, 26 October

Overcast. High 63°, low 48°.

Pressure30.21 inHg
Wind12.5 mph S
Humidity56%
Visibility—
Dew point45°
Tue, 2766° / 57°0.34Light rain
66 °Light rain

Greencastle, Tuesday, 27 October

Light rain. High 66°, low 57°.

Pressure30.15 inHg
Wind7.6 mph SW
Humidity78%
Visibility—
Dew point58°
Wed, 2859° / 50°0.74Rain
59 °Rain

Greencastle, Wednesday, 28 October

Rain. High 59°, low 50°.

Pressure30.15 inHg
Wind11.5 mph NE
Humidity57%
Visibility—
Dew point42°
Thu, 2963° / 46°0.66Rain
63 °Rain

Greencastle, Thursday, 29 October

Rain. High 63°, low 46°.

Pressure29.74 inHg
Wind19.1 mph SE
Humidity97%
Visibility—
Dew point47°
Fri, 3058° / 46°0.03Light rain
58 °Light rain

Greencastle, Friday, 30 October

Light rain. High 58°, low 46°.

Pressure29.74 inHg
Wind17.3 mph SW
Humidity90%
Visibility—
Dew point47°
Sat, 3157° / 39°0Clear
57 °Clear

Greencastle, Saturday, 31 October

Clear. High 57°, low 39°.

Pressure30.24 inHg
Wind13.7 mph N
Humidity54%
Visibility—
Dew point37°
Sun, 0160° / 43°0Clear
60 °Clear

Greencastle, Sunday, 1 November

Clear. High 60°, low 43°.

Pressure30.15 inHg
Wind8 mph SW
Humidity62%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0254° / 40°0.08Climate normal
54 °Climate normal

Greencastle, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low40°
Average precipitation0.08 in
Chance of precipitation33%
Record high76° (1964)
Record low17° (1991)
Tue, 0354° / 40°0.1Climate normal
54 °Climate normal

Greencastle, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°
Average low40°
Average precipitation0.1 in
Chance of precipitation25%
Record high74° (1978)
Record low11° (1991)
Wed, 0453° / 40°0.11Climate normal
53 °Climate normal

Greencastle, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.11 in
Chance of precipitation23%
Record high74° (1978)
Record low11° (1991)
Thu, 0553° / 38°0.06Climate normal
53 °Climate normal

Greencastle, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation30%
Record high71° (1978)
Record low22° (1991)
Fri, 0653° / 38°0.07Climate normal
53 °Climate normal

Greencastle, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation20%
Record high70° (2020)
Record low19° (1991)
Sat, 0753° / 38°0.02Climate normal
53 °Climate normal

Greencastle, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (1966)
Record low0° (1991)
Sun, 0853° / 38°0.04Climate normal
53 °Climate normal

Greencastle, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (1999)
Record low-16° (1991)
Mon, 0953° / 38°0.13Climate normal
53 °Climate normal

Greencastle, Monday, 9 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (1999)
Record low11° (1991)
Tue, 1051° / 36°0.11Climate normal
51 °Climate normal

Greencastle, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.11 in
Chance of precipitation27%
Record high72° (2012)
Record low13° (2018)
Wed, 1149° / 34°0.07Climate normal
49 °Climate normal

Greencastle, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high74° (1964)
Record low13° (2019)
Thu, 1248° / 33°0.07Climate normal
48 °Climate normal

Greencastle, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation28%
Record high69° (1999)
Record low6° (2019)
Fri, 1349° / 33°0.07Climate normal
49 °Climate normal

Greencastle, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation18%
Record high74° (1999)
Record low7° (1986)
Sat, 1449° / 35°0.04Climate normal
49 °Climate normal

Greencastle, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high74° (2025)
Record low15° (1986)
Sun, 1549° / 35°0.06Climate normal
49 °Climate normal

Greencastle, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high73° (2025)
Record low6° (1972)

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 Greencastle, MO 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 Greencastle, MO 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.