As of 17:52 CDT

Weather in Seymour, IL

55°Current weather

Seymour, Saturday, 17 October, 17:52

Clear. Feels like 52°. High 56°, low 38°.

Pressure30.47 inHg
Wind0 mph N
Humidity39%
Visibility6.2 mi
Dew point31°

Monthly outlook for Seymour, IL: average high 68°, average low 48.5°. That is 4.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 25 October (78.2°), the coolest 17 October (37.7°).

68°/48.5°
Average high / low
+4.3°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October69°61°+4.4°
27 October – 5 November66.3°57.6°+4.8°
6 November – 15 Novemberat normal52.1°—

October records over 66 years

88.2°7 October 2007All-time high
21.7°24 October 1981All-time low

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

Sun, 1861° / 38°0Clear
61 °Clear

Seymour, Sunday, 18 October

Clear. High 61°, low 38°.

Pressure30.47 inHg
Wind9.5 mph S
Humidity43%
Visibility6.2 mi
Dew point35°
Mon, 1966° / 40°0Partly cloudy
66 °Partly cloudy

Seymour, Monday, 19 October

Partly cloudy. High 66°, low 40°.

Pressure30.42 inHg
Wind2.5 mph SE
Humidity45%
Visibility6.2 mi
Dew point40°
Tue, 2068° / 43°0Clear
68 °Clear

Seymour, Tuesday, 20 October

Clear. High 68°, low 43°.

Pressure30.39 inHg
Wind3 mph E
Humidity43%
Visibility6.2 mi
Dew point43°
Wed, 2169° / 47°0Clear
69 °Clear

Seymour, Wednesday, 21 October

Clear. High 69°, low 47°.

Pressure30.27 inHg
Wind1.6 mph S
Humidity53%
Visibility6.2 mi
Dew point46°
Thu, 2269° / 48°0Clear
69 °Clear

Seymour, Thursday, 22 October

Clear. High 69°, low 48°.

Pressure30.27 inHg
Wind7.5 mph NE
Humidity47%
Visibility—
Dew point45°
Fri, 2373° / 49°0Overcast
73 °Overcast

Seymour, Friday, 23 October

Overcast. High 73°, low 49°.

Pressure30.27 inHg
Wind7.6 mph S
Humidity40%
Visibility—
Dew point42°
Sat, 2474° / 54°0Overcast
74 °Overcast

Seymour, Saturday, 24 October

Overcast. High 74°, low 54°.

Pressure30.27 inHg
Wind10.3 mph S
Humidity26%
Visibility—
Dew point33°
Sun, 2578° / 58°0Overcast
78 °Overcast

Seymour, Sunday, 25 October

Overcast. High 78°, low 58°.

Pressure30.18 inHg
Wind14.7 mph SW
Humidity24%
Visibility—
Dew point35°
Mon, 2677° / 60°0.04Light rain
77 °Light rain

Seymour, Monday, 26 October

Light rain. High 77°, low 60°.

Pressure30.12 inHg
Wind13.9 mph N
Humidity41%
Visibility—
Dew point48°
Tue, 2759° / 46°0.08Light rain
59 °Light rain

Seymour, Tuesday, 27 October

Light rain. High 59°, low 46°.

Pressure30.30 inHg
Wind14.7 mph NE
Humidity43%
Visibility—
Dew point36°
Wed, 2861° / 41°0Overcast
61 °Overcast

Seymour, Wednesday, 28 October

Overcast. High 61°, low 41°.

Pressure30.30 inHg
Wind13 mph SE
Humidity29%
Visibility—
Dew point24°
Thu, 2964° / 46°0.23Light rain
64 °Light rain

Seymour, Thursday, 29 October

Light rain. High 64°, low 46°.

Pressure29.97 inHg
Wind14.9 mph S
Humidity75%
Visibility—
Dew point49°
Fri, 3070° / 58°0.62Rain
70 °Rain

Seymour, Friday, 30 October

Rain. High 70°, low 58°.

Pressure29.91 inHg
Wind19.2 mph S
Humidity83%
Visibility—
Dew point57°
Sat, 3173° / 56°0.58Heavy rain
73 °Heavy rain

Seymour, Saturday, 31 October

Heavy rain. High 73°, low 56°.

Pressure29.83 inHg
Wind23.1 mph W
Humidity73%
Visibility—
Dew point63°
Sun, 0171° / 53°0.02Light rain
71 °Light rain

Seymour, Sunday, 1 November

Light rain. High 71°, low 53°.

Pressure30.12 inHg
Wind11.5 mph S
Humidity88%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0257° / 42°0.1Climate normal
57 °Climate normal

Seymour, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.1 in
Chance of precipitation28%
Record high76° (2016)
Record low25° (1996)
Tue, 0356° / 40°0.08Climate normal
56 °Climate normal

Seymour, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high76° (1987)
Record low19° (1991)
Wed, 0455° / 42°0.09Climate normal
55 °Climate normal

Seymour, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1978)
Record low17° (1991)
Thu, 0555° / 40°0.11Climate normal
55 °Climate normal

Seymour, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation28%
Record high76° (1978)
Record low19° (1991)
Fri, 0655° / 39°0.07Climate normal
55 °Climate normal

Seymour, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2020)
Record low25° (2010)
Sat, 0754° / 39°0.09Climate normal
54 °Climate normal

Seymour, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation22%
Record high69° (1966)
Record low19° (1991)
Sun, 0854° / 39°0.04Climate normal
54 °Climate normal

Seymour, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2023)
Record low10° (1991)
Mon, 0955° / 40°0.1Climate normal
55 °Climate normal

Seymour, Monday, 9 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.1 in
Chance of precipitation32%
Record high73° (1999)
Record low14° (1991)
Tue, 1053° / 38°0.14Climate normal
53 °Climate normal

Seymour, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.14 in
Chance of precipitation30%
Record high73° (2020)
Record low18° (2018)
Wed, 1151° / 35°0.1Climate normal
51 °Climate normal

Seymour, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (2010)
Record low20° (1995)
Thu, 1249° / 34°0.08Climate normal
49 °Climate normal

Seymour, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (2010)
Record low10° (2019)
Fri, 1349° / 35°0.07Climate normal
49 °Climate normal

Seymour, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation18%
Record high72° (1999)
Record low9° (1986)
Sat, 1451° / 35°0.09Climate normal
51 °Climate normal

Seymour, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (1971)
Record low13° (1986)
Sun, 1550° / 36°0.11Climate normal
50 °Climate normal

Seymour, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (2025)
Record low18° (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 Seymour, IL 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 Seymour, IL 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.