As of 11:31 CDT

Weather in Old Kaskaskia, IL

65°Current weather

Old Kaskaskia, Saturday, 31 October, 11:31

Clear. Feels like 64°. High 68°, low 59°.

Pressure30.27 inHg
Wind3.4 mph E
Humidity60%
Visibility6.2 mi
Dew point51°

Monthly outlook for Old Kaskaskia, IL: average high 65°, average low 51.3°. That is 3.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 3 November (73.7°), the coolest 13 November (41.6°).

65°/51.3°
Average high / low
+3.6°
Above normal
3 / 5
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November65.3°60.2°+2.8°
10 November – 19 November64.4°55.4°+5°
20 November – 29 Novemberat normal51.6°—

October records over 66 years

93.6°1 October 2019All-time high
26.8°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — St. Mary (5 mi).

Sun, 0169° / 58°0.05Light rain
69 °Light rain

Old Kaskaskia, Sunday, 1 November

Light rain. High 69°, low 58°.

Pressure30.27 inHg
Wind10.7 mph SE
Humidity75%
Visibility6.2 mi
Dew point54°
Mon, 0269° / 58°0Overcast
69 °Overcast

Old Kaskaskia, Monday, 2 November

Overcast. High 69°, low 58°.

Pressure30.06 inHg
Wind10.6 mph S
Humidity88%
Visibility6.2 mi
Dew point60°
Tue, 0374° / 65°0.2Rain
74 °Rain

Old Kaskaskia, Tuesday, 3 November

Rain. High 74°, low 65°.

Pressure29.88 inHg
Wind16.5 mph S
Humidity79%
Visibility6.2 mi
Dew point64°
Wed, 0469° / 56°1.5Heavy rain
69 °Heavy rain

Old Kaskaskia, Wednesday, 4 November

Heavy rain. High 69°, low 56°.

Pressure29.71 inHg
Wind10.6 mph W
Humidity57%
Visibility—
Dew point52°
Thu, 0564° / 50°0Overcast
64 °Overcast

Old Kaskaskia, Thursday, 5 November

Overcast. High 64°, low 50°.

Pressure29.85 inHg
Wind8.3 mph W
Humidity58%
Visibility—
Dew point46°
Fri, 0662° / 54°0Overcast
62 °Overcast

Old Kaskaskia, Friday, 6 November

Overcast. High 62°, low 54°.

Pressure29.88 inHg
Wind11.3 mph N
Humidity68%
Visibility—
Dew point46°
Sat, 0760° / 46°0Overcast
60 °Overcast

Old Kaskaskia, Saturday, 7 November

Overcast. High 60°, low 46°.

Pressure29.91 inHg
Wind5.1 mph NW
Humidity53%
Visibility—
Dew point41°
Sun, 0861° / 48°0Partly cloudy
61 °Partly cloudy

Old Kaskaskia, Sunday, 8 November

Partly cloudy. High 61°, low 48°.

Pressure29.88 inHg
Wind16.6 mph N
Humidity38%
Visibility—
Dew point34°
Mon, 0958° / 45°0Overcast
58 °Overcast

Old Kaskaskia, Monday, 9 November

Overcast. High 58°, low 45°.

Pressure30.00 inHg
Wind15 mph N
Humidity68%
Visibility—
Dew point45°
Tue, 1065° / 47°0Clear
65 °Clear

Old Kaskaskia, Tuesday, 10 November

Clear. High 65°, low 47°.

Pressure30.12 inHg
Wind7.3 mph N
Humidity52%
Visibility—
Dew point43°
Wed, 1167° / 49°0Overcast
67 °Overcast

Old Kaskaskia, Wednesday, 11 November

Overcast. High 67°, low 49°.

Pressure29.94 inHg
Wind15.2 mph NW
Humidity40%
Visibility—
Dew point40°
Thu, 1261° / 49°0.02Light rain
61 °Light rain

Old Kaskaskia, Thursday, 12 November

Light rain. High 61°, low 49°.

Pressure30.03 inHg
Wind15.5 mph N
Humidity61%
Visibility—
Dew point44°
Fri, 1362° / 42°0Mostly clear
62 °Mostly clear

Old Kaskaskia, Friday, 13 November

Mostly clear. High 62°, low 42°.

Pressure30.15 inHg
Wind7.2 mph S
Humidity44%
Visibility—
Dew point35°
Sat, 1470° / 48°0Clear
70 °Clear

Old Kaskaskia, Saturday, 14 November

Clear. High 70°, low 48°.

Pressure30.06 inHg
Wind10.9 mph NW
Humidity34%
Visibility—
Dew point36°
Sun, 1561° / 47°0Overcast
61 °Overcast

Old Kaskaskia, Sunday, 15 November

Overcast. High 61°, low 47°.

Pressure30.12 inHg
Wind5.4 mph NW
Humidity28%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1655° / 39°0.13Climate normal
55 °Climate normal

Old Kaskaskia, Monday, 16 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.13 in
Chance of precipitation27%
Record high73° (2001)
Record low24° (1970)
Tue, 1756° / 39°0.13Climate normal
56 °Climate normal

Old Kaskaskia, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.13 in
Chance of precipitation27%
Record high76° (2016)
Record low11° (1997)
Wed, 1855° / 40°0.15Climate normal
55 °Climate normal

Old Kaskaskia, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.15 in
Chance of precipitation32%
Record high78° (2025)
Record low16° (2014)
Thu, 1955° / 40°0.09Climate normal
55 °Climate normal

Old Kaskaskia, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation38%
Record high73° (1985)
Record low20° (2022)
Fri, 2054° / 39°0.13Climate normal
54 °Climate normal

Old Kaskaskia, Friday, 20 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.13 in
Chance of precipitation30%
Record high71° (1979)
Record low21° (2022)
Sat, 2153° / 39°0.11Climate normal
53 °Climate normal

Old Kaskaskia, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.11 in
Chance of precipitation27%
Record high70° (1990)
Record low21° (1964)
Sun, 2252° / 38°0.11Climate normal
52 °Climate normal

Old Kaskaskia, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (2010)
Record low18° (1964)
Mon, 2353° / 38°0.11Climate normal
53 °Climate normal

Old Kaskaskia, Monday, 23 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high67° (1968)
Record low20° (1970)
Tue, 2452° / 37°0.15Climate normal
52 °Climate normal

Old Kaskaskia, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.15 in
Chance of precipitation30%
Record high70° (1966)
Record low16° (1970)
Wed, 2552° / 37°0.19Climate normal
52 °Climate normal

Old Kaskaskia, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.19 in
Chance of precipitation35%
Record high68° (1990)
Record low22° (2005)
Thu, 2651° / 38°0.17Climate normal
51 °Climate normal

Old Kaskaskia, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.17 in
Chance of precipitation43%
Record high74° (1965)
Record low16° (1977)
Fri, 2751° / 37°0.22Climate normal
51 °Climate normal

Old Kaskaskia, Friday, 27 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.22 in
Chance of precipitation38%
Record high71° (1990)
Record low15° (1993)
Sat, 2848° / 34°0.11Climate normal
48 °Climate normal

Old Kaskaskia, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high70° (1998)
Record low19° (1977)
Sun, 2949° / 35°0.09Climate normal
49 °Climate normal

Old Kaskaskia, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1998)
Record low17° (1976)

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 Old Kaskaskia, 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 Old Kaskaskia, 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.