As of 05:32 CDT

Weather in Herndon, MO

68°Current weather

Herndon, Tuesday, 13 October, 05:32

Clear. Feels like 68°. High 92°, low 68°.

Pressure29.85 inHg
Wind4.6 mph S
Humidity68%
Visibility6.2 mi
Dew point57°

Monthly outlook for Herndon, MO: average high 68.1°, average low 53.5°. That is 2.2° above the climate normal for October. Precipitation is expected on 6 days (about 3.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (92.3°), the coolest 17 October (41°).

68.1°/53.5°
Average high / low
+2.2°
Above normal
6 / 4
Wet days / normal
3.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October71.2°65.6°+3.1°
23 October – 1 November62.9°61.4°+0.8°
2 November – 11 Novemberat normal56.6°—

October records over 66 years

91.9°3 October 2006All-time high
25.2°31 October 1993All-time low

Climate normals and records are computed from the nearest reference point — Marshall (8 mi).

Wed, 1478° / 67°0.8Heavy rain
78 °Heavy rain

Herndon, Wednesday, 14 October

Heavy rain. High 78°, low 67°.

Pressure30.03 inHg
Wind6.2 mph NE
Humidity86%
Visibility6.2 mi
Dew point69°
Thu, 1574° / 61°1.91Heavy rain
74 °Heavy rain

Herndon, Thursday, 15 October

Heavy rain. High 74°, low 61°.

Pressure29.94 inHg
Wind9.4 mph SW
Humidity96%
Visibility2.2 mi
Dew point71°
Fri, 1659° / 49°0Overcast
59 °Overcast

Herndon, Friday, 16 October

Overcast. High 59°, low 49°.

Pressure30.47 inHg
Wind19.1 mph N
Humidity44%
Visibility6.2 mi
Dew point35°
Sat, 1759° / 41°0Clear
59 °Clear

Herndon, Saturday, 17 October

Clear. High 59°, low 41°.

Pressure30.53 inHg
Wind6.3 mph SE
Humidity50%
Visibility—
Dew point37°
Sun, 1863° / 47°0Overcast
63 °Overcast

Herndon, Sunday, 18 October

Overcast. High 63°, low 47°.

Pressure30.24 inHg
Wind12.2 mph S
Humidity51%
Visibility—
Dew point42°
Mon, 1963° / 56°0.03Light rain
63 °Light rain

Herndon, Monday, 19 October

Light rain. High 63°, low 56°.

Pressure30.18 inHg
Wind8.9 mph SE
Humidity54%
Visibility—
Dew point44°
Tue, 2073° / 56°0Overcast
73 °Overcast

Herndon, Tuesday, 20 October

Overcast. High 73°, low 56°.

Pressure30.12 inHg
Wind10 mph S
Humidity48%
Visibility—
Dew point49°
Wed, 2177° / 62°0.06Light rain
77 °Light rain

Herndon, Wednesday, 21 October

Light rain. High 77°, low 62°.

Pressure30.06 inHg
Wind16.4 mph S
Humidity62%
Visibility—
Dew point61°
Thu, 2274° / 67°0.4Rain
74 °Rain

Herndon, Thursday, 22 October

Rain. High 74°, low 67°.

Pressure29.91 inHg
Wind20.9 mph S
Humidity84%
Visibility—
Dew point64°
Fri, 2370° / 56°0.37Rain
70 °Rain

Herndon, Friday, 23 October

Rain. High 70°, low 56°.

Pressure30.09 inHg
Wind21.7 mph S
Humidity49%
Visibility—
Dew point45°
Sat, 2463° / 49°0Overcast
63 °Overcast

Herndon, Saturday, 24 October

Overcast. High 63°, low 49°.

Pressure30.30 inHg
Wind9.1 mph NE
Humidity38%
Visibility—
Dew point35°
Sun, 2556° / 43°0.05Light rain
56 °Light rain

Herndon, Sunday, 25 October

Light rain. High 56°, low 43°.

Pressure30.18 inHg
Wind12.9 mph N
Humidity49%
Visibility—
Dew point36°
Mon, 2661° / 44°0Partly cloudy
61 °Partly cloudy

Herndon, Monday, 26 October

Partly cloudy. High 61°, low 44°.

Pressure30.33 inHg
Wind8.7 mph NE
Humidity52%
Visibility—
Dew point40°
Tue, 2762° / 43°0Overcast
62 °Overcast

Herndon, Tuesday, 27 October

Overcast. High 62°, low 43°.

Pressure30.30 inHg
Wind6.6 mph W
Humidity48%
Visibility—
Dew point38°
Wed, 2866° / 48°0Overcast
66 °Overcast

Herndon, Wednesday, 28 October

Overcast. High 66°, low 48°.

Pressure30.09 inHg
Wind7.2 mph W
Humidity52%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2961° / 46°0.11Climate normal
61 °Climate normal

Herndon, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.11 in
Chance of precipitation33%
Record high81° (2024)
Record low28° (1980)
Fri, 3061° / 46°0.15Climate normal
61 °Climate normal

Herndon, Friday, 30 October

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.15 in
Chance of precipitation38%
Record high79° (2024)
Record low27° (1993)
Sat, 3160° / 46°0.19Climate normal
60 °Climate normal

Herndon, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.19 in
Chance of precipitation37%
Record high79° (1968)
Record low25° (1993)
Sun, 0160° / 44°0.19Climate normal
60 °Climate normal

Herndon, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.19 in
Chance of precipitation32%
Record high79° (2016)
Record low21° (2023)
Mon, 0258° / 43°0.07Climate normal
58 °Climate normal

Herndon, Monday, 2 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.07 in
Chance of precipitation32%
Record high78° (1964)
Record low23° (1991)
Tue, 0358° / 43°0.13Climate normal
58 °Climate normal

Herndon, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.13 in
Chance of precipitation30%
Record high75° (1978)
Record low16° (1991)
Wed, 0457° / 43°0.12Climate normal
57 °Climate normal

Herndon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°
Average low43°
Average precipitation0.12 in
Chance of precipitation27%
Record high77° (1978)
Record low16° (1991)
Thu, 0556° / 42°0.07Climate normal
56 °Climate normal

Herndon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation32%
Record high72° (2008)
Record low24° (1967)
Fri, 0657° / 41°0.09Climate normal
57 °Climate normal

Herndon, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (1999)
Record low25° (1993)
Sat, 0757° / 41°0.03Climate normal
57 °Climate normal

Herndon, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.03 in
Chance of precipitation13%
Record high75° (1999)
Record low12° (1991)
Sun, 0858° / 42°0.06Climate normal
58 °Climate normal

Herndon, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (1980)
Record low5° (1991)
Mon, 0958° / 42°0.08Climate normal
58 °Climate normal

Herndon, Monday, 9 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation28%
Record high77° (2022)
Record low19° (1991)
Tue, 1055° / 40°0.09Climate normal
55 °Climate normal

Herndon, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation32%
Record high75° (2022)
Record low16° (2018)
Wed, 1153° / 38°0.08Climate normal
53 °Climate normal

Herndon, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation28%
Record high76° (1964)
Record low17° (2019)

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 Herndon, 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 Herndon, 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.