Monthly outlook for Big Lake, MO: average high 64.1°, average low 46.6°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 24 October (75.3°), the coolest 29 October (30.1°).
64.1°/46.6°
Average high / low
+1.6°
Above normal
3 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
65.6°
62.9°
+1.5°
29 October – 7 November
61.5°
57.6°
+2.2°
8 November – 17 November
at normal
53.1°
—
October records over 66 years
95.5°5 October 1963All-time high
12.7°27 October 1997All-time low
Climate normals and records are computed from the nearest reference point — Fortescue (2 mi).
Tue, 2072° / 46°0
72 °
Big Lake, Tuesday, 20 October
Clear. High 72°, low 46°.
Pressure30.27 inHg
Wind6.8 mph S
Humidity52%
Visibility6.2 mi
Dew point48°
Wed, 2173° / 50°0
73 °
Big Lake, Wednesday, 21 October
Clear. High 73°, low 50°.
Pressure30.24 inHg
Wind5.8 mph S
Humidity53%
Visibility6.2 mi
Dew point51°
Thu, 2274° / 51°0
74 °
Big Lake, Thursday, 22 October
Clear. High 74°, low 51°.
Pressure30.24 inHg
Wind6.8 mph SE
Humidity49%
Visibility6.2 mi
Dew point51°
Fri, 2375° / 55°0
75 °
Big Lake, Friday, 23 October
Overcast. High 75°, low 55°.
Pressure30.15 inHg
Wind11.4 mph SE
Humidity52%
Visibility6.2 mi
Dew point50°
Sat, 2475° / 59°0
75 °
Big Lake, Saturday, 24 October
Mostly clear. High 75°, low 59°.
Pressure30.21 inHg
Wind12.3 mph S
Humidity46%
Visibility—
Dew point49°
Sun, 2563° / 57°0.07
63 °
Big Lake, Sunday, 25 October
Light rain. High 63°, low 57°.
Pressure30.33 inHg
Wind8.2 mph E
Humidity67%
Visibility—
Dew point49°
Mon, 2657° / 53°0.15
57 °
Big Lake, Monday, 26 October
Light rain. High 57°, low 53°.
Pressure30.33 inHg
Wind9.2 mph E
Humidity53%
Visibility—
Dew point40°
Tue, 2753° / 44°0.05
53 °
Big Lake, Tuesday, 27 October
Light rain. High 53°, low 44°.
Pressure30.42 inHg
Wind13.5 mph N
Humidity79%
Visibility—
Dew point42°
Wed, 2846° / 31°0
46 °
Big Lake, Wednesday, 28 October
Overcast. High 46°, low 31°.
Pressure30.62 inHg
Wind9.9 mph N
Humidity31%
Visibility—
Dew point12°
Thu, 2951° / 30°0
51 °
Big Lake, Thursday, 29 October
Clear. High 51°, low 30°.
Pressure30.47 inHg
Wind10.1 mph S
Humidity30%
Visibility—
Dew point15°
Fri, 3060° / 39°0
60 °
Big Lake, Friday, 30 October
Partly cloudy. High 60°, low 39°.
Pressure30.12 inHg
Wind19.1 mph SW
Humidity44%
Visibility—
Dew point34°
Sat, 3167° / 46°0
67 °
Big Lake, Saturday, 31 October
Partly cloudy. High 67°, low 46°.
Pressure30.00 inHg
Wind15 mph SW
Humidity53%
Visibility—
Dew point44°
Sun, 0167° / 52°0
67 °
Big Lake, Sunday, 1 November
Overcast. High 67°, low 52°.
Pressure30.06 inHg
Wind11.2 mph NE
Humidity57%
Visibility—
Dew point47°
Mon, 0261° / 45°0
61 °
Big Lake, Monday, 2 November
Mostly clear. High 61°, low 45°.
Pressure30.21 inHg
Wind9.9 mph N
Humidity43%
Visibility—
Dew point34°
Tue, 0364° / 43°0
64 °
Big Lake, Tuesday, 3 November
Partly cloudy. High 64°, low 43°.
Pressure29.97 inHg
Wind16.5 mph S
Humidity56%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0456° / 40°0.12
56 °
Big Lake, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation22%
Record high76° (1978)
Record low13° (1991)
Thu, 0556° / 40°0.05
56 °
Big Lake, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation23%
Record high76° (2015)
Record low22° (1982)
Fri, 0656° / 39°0.06
56 °
Big Lake, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.06 in
Chance of precipitation17%
Record high74° (1980)
Record low21° (1991)
Sat, 0756° / 39°0.03
56 °
Big Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.03 in
Chance of precipitation8%
Record high75° (1966)
Record low9° (1991)
Sun, 0856° / 40°0.06
56 °
Big Lake, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (1980)
Record low11° (1991)
Mon, 0956° / 39°0.11
56 °
Big Lake, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.11 in
Chance of precipitation30%
Record high75° (1999)
Record low18° (2018)
Tue, 1053° / 37°0.1
53 °
Big Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (2012)
Record low15° (2018)
Wed, 1151° / 35°0.06
51 °
Big Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high75° (1964)
Record low10° (1986)
Thu, 1251° / 35°0.07
51 °
Big Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.07 in
Chance of precipitation17%
Record high74° (2005)
Record low6° (1968)
Fri, 1352° / 35°0.06
52 °
Big Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.06 in
Chance of precipitation13%
Record high79° (1999)
Record low5° (1986)
Sat, 1452° / 36°0.03
52 °
Big Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.03 in
Chance of precipitation13%
Record high75° (2025)
Record low15° (2014)
Sun, 1553° / 37°0.06
53 °
Big Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (2025)
Record low13° (1972)
Mon, 1653° / 35°0.07
53 °
Big Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.07 in
Chance of precipitation15%
Record high73° (1963)
Record low16° (2014)
Tue, 1754° / 37°0.08
54 °
Big Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high74° (2016)
Record low18° (2014)
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 Big Lake, 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 Big Lake, 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.