Monthly outlook for Grimes Mill, MO: average high 66.1°, average low 49.1°. That is 2.4° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 21 October (76.7°), the coolest 29 October (36°).
66.1°/49.1°
Average high / low
+2.4°
Above normal
2 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
69.1°
63.3°
+3.2°
31 October – 9 November
61°
59°
+1.1°
10 November – 19 November
at normal
55°
—
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).
Thu, 2276° / 47°0
76 °
Grimes Mill, Thursday, 22 October
Clear. High 76°, low 47°.
Pressure30.27 inHg
Wind2.3 mph E
Humidity45%
Visibility6.2 mi
Dew point49°
Fri, 2374° / 46°0
74 °
Grimes Mill, Friday, 23 October
Partly cloudy. High 74°, low 46°.
Pressure30.27 inHg
Wind7.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point49°
Sat, 2475° / 52°0
75 °
Grimes Mill, Saturday, 24 October
Overcast. High 75°, low 52°.
Pressure30.33 inHg
Wind6.3 mph S
Humidity39%
Visibility6.2 mi
Dew point45°
Sun, 2574° / 54°0
74 °
Grimes Mill, Sunday, 25 October
Partly cloudy. High 74°, low 54°.
Pressure30.36 inHg
Wind6.2 mph S
Humidity41%
Visibility6.2 mi
Dew point45°
Mon, 2671° / 53°0
71 °
Grimes Mill, Monday, 26 October
Overcast. High 71°, low 53°.
Pressure30.27 inHg
Wind8.3 mph S
Humidity40%
Visibility—
Dew point42°
Tue, 2766° / 54°0
66 °
Grimes Mill, Tuesday, 27 October
Overcast. High 66°, low 54°.
Pressure30.18 inHg
Wind9.1 mph S
Humidity58%
Visibility—
Dew point47°
Wed, 2863° / 43°0
63 °
Grimes Mill, Wednesday, 28 October
Clear. High 63°, low 43°.
Pressure30.21 inHg
Wind17.2 mph NW
Humidity55%
Visibility—
Dew point44°
Thu, 2956° / 36°0
56 °
Grimes Mill, Thursday, 29 October
Overcast. High 56°, low 36°.
Pressure30.36 inHg
Wind10.3 mph N
Humidity44%
Visibility—
Dew point31°
Fri, 3061° / 42°0
61 °
Grimes Mill, Friday, 30 October
Clear. High 61°, low 42°.
Pressure30.18 inHg
Wind14 mph S
Humidity40%
Visibility—
Dew point34°
Sat, 3171° / 52°0.01
71 °
Grimes Mill, Saturday, 31 October
Light rain. High 71°, low 52°.
Pressure30.06 inHg
Wind11.9 mph S
Humidity40%
Visibility—
Dew point42°
Sun, 0160° / 53°0.67
60 °
Grimes Mill, Sunday, 1 November
Rain. High 60°, low 53°.
Pressure29.94 inHg
Wind21 mph SE
Humidity92%
Visibility—
Dew point53°
Mon, 0265° / 58°0.5
65 °
Grimes Mill, Monday, 2 November
Rain. High 65°, low 58°.
Pressure29.88 inHg
Wind16.1 mph SW
Humidity74%
Visibility—
Dew point56°
Tue, 0361° / 55°0.01
61 °
Grimes Mill, Tuesday, 3 November
Light rain. High 61°, low 55°.
Pressure29.94 inHg
Wind10.8 mph SW
Humidity75%
Visibility—
Dew point51°
Wed, 0455° / 48°0
55 °
Grimes Mill, Wednesday, 4 November
Overcast. High 55°, low 48°.
Pressure30.15 inHg
Wind9.5 mph N
Humidity87%
Visibility—
Dew point47°
Thu, 0554° / 46°0
54 °
Grimes Mill, Thursday, 5 November
Overcast. High 54°, low 46°.
Pressure30.09 inHg
Wind8.1 mph N
Humidity80%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1555° / 39°0.17
55 °
Grimes Mill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation42%
Record high78° (2025)
Record low23° (2018)
Mon, 1654° / 38°0.15
54 °
Grimes Mill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.15 in
Chance of precipitation25%
Record high73° (2016)
Record low24° (1997)
Tue, 1755° / 39°0.15
55 °
Grimes Mill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.15 in
Chance of precipitation25%
Record high74° (2016)
Record low18° (1997)
Wed, 1854° / 39°0.14
54 °
Grimes Mill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation28%
Record high77° (2025)
Record low15° (2014)
Thu, 1955° / 39°0.1
55 °
Grimes Mill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.1 in
Chance of precipitation27%
Record high70° (1979)
Record low20° (2022)
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.