10-day forecast for St. John, MO: 40° to 77°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Thursday, October 22
54° · 0.04 in
Worst day: Wednesday, October 28
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 2374° / 47°0
Morning50°feels 49°
Afternoon71°feels 70°
Evening62°feels 61°
Overnight52°feels 50°
74 °
St. John, Friday, 23 October
Clear. High 74°, low 47°.
Pressure30.30 inHg
Wind4.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point49°
Sat, 2472° / 51°0
Morning52°feels 51°
Afternoon72°feels 71°
Evening64°feels 62°
Overnight55°feels 54°
72 °
St. John, Saturday, 24 October
Mostly clear. High 72°, low 51°.
Pressure30.36 inHg
Wind4.6 mph SE
Humidity50%
Visibility6.2 mi
Dew point49°
Sun, 2575° / 52°0
Morning56°feels 55°
Afternoon74°feels 73°
Evening65°feels 64°
Overnight56°feels 55°
75 °
St. John, Sunday, 25 October
Overcast. High 75°, low 52°.
Pressure30.39 inHg
Wind2.4 mph SE
Humidity49%
Visibility6.2 mi
Dew point49°
Mon, 2674° / 56°0
Morning61°feels 59°
Afternoon71°feels 70°
Evening65°feels 64°
Overnight60°feels 58°
74 °
St. John, Monday, 26 October
Overcast. High 74°, low 56°.
Pressure30.33 inHg
Wind5.2 mph S
Humidity39%
Visibility—
Dew point44°
Tue, 2772° / 55°0
Morning60°feels 59°
Afternoon71°feels 69°
Evening67°feels 66°
Overnight59°feels 58°
72 °
St. John, Tuesday, 27 October
Overcast. High 72°, low 55°.
Pressure30.21 inHg
Wind9.5 mph W
Humidity39%
Visibility—
Dew point43°
Wed, 2854° / 45°0.04
Morning51°feels 47°
Afternoon51°feels 49°
Evening46°feels 41°
Overnight46°feels 41°
54 °
St. John, Wednesday, 28 October
Light rain. High 54°, low 45°.
Pressure30.30 inHg
Wind13.1 mph NW
Humidity59%
Visibility—
Dew point38°
Thu, 2958° / 40°0.04
Morning44°feels 40°
Afternoon54°feels 51°
Evening53°feels 50°
Overnight49°feels 46°
58 °
St. John, Thursday, 29 October
Light rain. High 58°, low 40°.
Pressure30.33 inHg
Wind7.7 mph NW
Humidity39%
Visibility—
Dew point28°
Fri, 3066° / 46°0
Morning51°feels 49°
Afternoon62°feels 59°
Evening61°feels 58°
Overnight56°feels 54°
66 °
St. John, Friday, 30 October
Partly cloudy. High 66°, low 46°.
Pressure30.18 inHg
Wind10 mph S
Humidity32%
Visibility—
Dew point30°
Sat, 3171° / 54°0
Morning58°feels 56°
Afternoon68°feels 66°
Evening68°feels 66°
Overnight64°feels 62°
71 °
St. John, Saturday, 31 October
Overcast. High 71°, low 54°.
Pressure30.03 inHg
Wind14.1 mph S
Humidity37%
Visibility—
Dew point39°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in St. John, MO around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.