Monthly outlook for Grimes Mill, MO: average high 67.7°, average low 48.7°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 23 October (79.1°), the coolest 31 October (38.9°).
67.7°/48.7°
Average high / low
+2.2°
Above normal
3 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
69.6°
64.9°
+2.6°
26 October – 4 November
64.6°
60.9°
+2.1°
5 November – 14 November
at normal
56.8°
—
October records over 66 years
88.5°10 October 1963All-time high
24.6°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Mountain Grove (15 mi).
Sat, 1758° / 41°0
58 °
Grimes Mill, Saturday, 17 October
Clear. High 58°, low 41°.
Pressure30.56 inHg
Wind4.1 mph NE
Humidity54%
Visibility6.2 mi
Dew point37°
Sun, 1862° / 42°0
62 °
Grimes Mill, Sunday, 18 October
Clear. High 62°, low 42°.
Pressure30.47 inHg
Wind6.9 mph S
Humidity49%
Visibility6.2 mi
Dew point38°
Mon, 1966° / 43°0
66 °
Grimes Mill, Monday, 19 October
Mostly clear. High 66°, low 43°.
Pressure30.36 inHg
Wind6.2 mph S
Humidity45%
Visibility6.2 mi
Dew point41°
Tue, 2069° / 46°0
69 °
Grimes Mill, Tuesday, 20 October
Clear. High 69°, low 46°.
Pressure30.30 inHg
Wind5.9 mph S
Humidity38%
Visibility—
Dew point38°
Wed, 2171° / 47°0
71 °
Grimes Mill, Wednesday, 21 October
Partly cloudy. High 71°, low 47°.
Pressure30.27 inHg
Wind6.2 mph SE
Humidity39%
Visibility—
Dew point41°
Thu, 2278° / 55°0
78 °
Grimes Mill, Thursday, 22 October
Mostly clear. High 78°, low 55°.
Pressure30.15 inHg
Wind6.9 mph S
Humidity28%
Visibility—
Dew point38°
Fri, 2379° / 58°0
79 °
Grimes Mill, Friday, 23 October
Clear. High 79°, low 58°.
Pressure30.12 inHg
Wind10 mph S
Humidity32%
Visibility—
Dew point43°
Sat, 2477° / 57°0
77 °
Grimes Mill, Saturday, 24 October
Overcast. High 77°, low 57°.
Pressure30.12 inHg
Wind13 mph S
Humidity30%
Visibility—
Dew point39°
Sun, 2578° / 60°0
78 °
Grimes Mill, Sunday, 25 October
Overcast. High 78°, low 60°.
Pressure30.09 inHg
Wind8.8 mph SE
Humidity31%
Visibility—
Dew point42°
Mon, 2666° / 51°0.4
66 °
Grimes Mill, Monday, 26 October
Rain. High 66°, low 51°.
Pressure29.91 inHg
Wind15.1 mph S
Humidity87%
Visibility—
Dew point56°
Tue, 2764° / 42°0
64 °
Grimes Mill, Tuesday, 27 October
Overcast. High 64°, low 42°.
Pressure30.03 inHg
Wind11 mph W
Humidity45%
Visibility—
Dew point37°
Wed, 2860° / 52°0.13
60 °
Grimes Mill, Wednesday, 28 October
Light rain. High 60°, low 52°.
Pressure30.00 inHg
Wind15.2 mph SE
Humidity68%
Visibility—
Dew point47°
Thu, 2963° / 54°0.02
63 °
Grimes Mill, Thursday, 29 October
Light rain. High 63°, low 54°.
Pressure29.77 inHg
Wind13.1 mph SE
Humidity94%
Visibility—
Dew point57°
Fri, 3067° / 45°0.06
67 °
Grimes Mill, Friday, 30 October
Light rain. High 67°, low 45°.
Pressure29.65 inHg
Wind26.8 mph W
Humidity70%
Visibility—
Dew point53°
Sat, 3167° / 39°0
67 °
Grimes Mill, Saturday, 31 October
Clear. High 67°, low 39°.
Pressure30.00 inHg
Wind15.4 mph W
Humidity34%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0161° / 45°0.17
61 °
Grimes Mill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.17 in
Chance of precipitation38%
Record high78° (2016)
Record low23° (2023)
Mon, 0259° / 44°0.1
59 °
Grimes Mill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.1 in
Chance of precipitation30%
Record high78° (2016)
Record low26° (1991)
Tue, 0359° / 43°0.11
59 °
Grimes Mill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.11 in
Chance of precipitation23%
Record high75° (1987)
Record low17° (1991)
Wed, 0458° / 44°0.19
58 °
Grimes Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.19 in
Chance of precipitation25%
Record high78° (1978)
Record low16° (1991)
Thu, 0558° / 42°0.19
58 °
Grimes Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.19 in
Chance of precipitation37%
Record high77° (1978)
Record low23° (1976)
Fri, 0658° / 41°0.12
58 °
Grimes Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.12 in
Chance of precipitation27%
Record high75° (1999)
Record low26° (1993)
Sat, 0758° / 42°0.1
58 °
Grimes Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.1 in
Chance of precipitation18%
Record high76° (1980)
Record low23° (1993)
Sun, 0858° / 42°0.04
58 °
Grimes Mill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high78° (2023)
Record low15° (1991)
Mon, 0959° / 42°0.09
59 °
Grimes Mill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (2022)
Record low19° (1991)
Tue, 1057° / 41°0.11
57 °
Grimes Mill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (1999)
Record low16° (2018)
Wed, 1156° / 39°0.07
56 °
Grimes Mill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high77° (1989)
Record low21° (2019)
Thu, 1254° / 38°0.06
54 °
Grimes Mill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1989)
Record low9° (2019)
Fri, 1355° / 37°0.06
55 °
Grimes Mill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (1999)
Record low11° (1986)
Sat, 1455° / 39°0.09
55 °
Grimes Mill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (2025)
Record low17° (2018)
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 Grimes Mill, 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 Grimes Mill, 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.