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As of 03:35 CDT

Weather in Glennon, MO

40°Current weather

Glennon, Sunday, 18 October, 03:35

Clear. Feels like 38°. High 64°, low 40°.

Pressure30.47 inHg
Wind3.8 mph NE
Humidity85%
Visibility6.2 mi
Dew point36°
Mon, 1968° / 45°0Clear
68 °Clear

Glennon, Monday, 19 October

Clear. High 68°, low 45°.

Pressure30.39 inHg
Wind3.8 mph S
Humidity49%
Visibility6.2 mi
Dew point46°
Tue, 2071° / 46°0Overcast
71 °Overcast

Glennon, Tuesday, 20 October

Overcast. High 71°, low 46°.

Pressure30.36 inHg
Wind1.2 mph SE
Humidity40%
Visibility6.2 mi
Dew point43°
Wed, 2171° / 48°0Clear
71 °Clear

Glennon, Wednesday, 21 October

Clear. High 71°, low 48°.

Pressure30.30 inHg
Wind3 mph NE
Humidity43%
Visibility6.2 mi
Dew point46°
Thu, 2272° / 50°0Clear
72 °Clear

Glennon, Thursday, 22 October

Clear. High 72°, low 50°.

Pressure30.24 inHg
Wind4.7 mph NE
Humidity42%
Visibility—
Dew point44°
Fri, 2371° / 51°0Clear
71 °Clear

Glennon, Friday, 23 October

Clear. High 71°, low 51°.

Pressure30.24 inHg
Wind6.3 mph E
Humidity48%
Visibility—
Dew point47°
Sat, 2479° / 56°0Overcast
79 °Overcast

Glennon, Saturday, 24 October

Overcast. High 79°, low 56°.

Pressure30.30 inHg
Wind9.7 mph S
Humidity28%
Visibility—
Dew point38°
Sun, 2573° / 57°0Overcast
73 °Overcast

Glennon, Sunday, 25 October

Overcast. High 73°, low 57°.

Pressure30.36 inHg
Wind14.1 mph N
Humidity43%
Visibility—
Dew point47°
Mon, 2665° / 51°0Overcast
65 °Overcast

Glennon, Monday, 26 October

Overcast. High 65°, low 51°.

Pressure30.33 inHg
Wind9.9 mph NE
Humidity40%
Visibility—
Dew point37°
Tue, 2773° / 55°0Overcast
73 °Overcast

Glennon, Tuesday, 27 October

Overcast. High 73°, low 55°.

Pressure30.18 inHg
Wind5.4 mph S
Humidity43%
Visibility—
Dew point45°
Wed, 2872° / 57°0.11Light rain
72 °Light rain

Glennon, Wednesday, 28 October

Light rain. High 72°, low 57°.

Pressure30.00 inHg
Wind10.9 mph S
Humidity35%
Visibility—
Dew point41°
Thu, 2966° / 58°0.61Rain
66 °Rain

Glennon, Thursday, 29 October

Rain. High 66°, low 58°.

Pressure29.80 inHg
Wind5.8 mph NW
Humidity88%
Visibility—
Dew point59°
Fri, 3075° / 61°0Overcast
75 °Overcast

Glennon, Friday, 30 October

Overcast. High 75°, low 61°.

Pressure29.85 inHg
Wind10.7 mph SW
Humidity50%
Visibility—
Dew point53°
Sat, 3180° / 63°0.01Light rain
80 °Light rain

Glennon, Saturday, 31 October

Light rain. High 80°, low 63°.

Pressure29.88 inHg
Wind15.8 mph SW
Humidity54%
Visibility—
Dew point58°
Sun, 0181° / 66°0.01Light rain
81 °Light rain

Glennon, Sunday, 1 November

Light rain. High 81°, low 66°.

Pressure30.06 inHg
Wind10.2 mph SW
Humidity70%
Visibility—
Dew point64°
Mon, 0278° / 67°0.11Light rain
78 °Light rain

Glennon, Monday, 2 November

Light rain. High 78°, low 67°.

Pressure30.12 inHg
Wind6.8 mph S
Humidity61%
Visibility—
Dew point62°

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 Glennon, 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 Glennon, 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.