Local weather forecastAlton, IL

Local forecast
Hourly
Ten-day
Maps
Averages

Current conditions (as of 11:25 PM)

Today's forecast

°F | °C

Cloudy

-4°C

Feels like: -12°C

Barometer:	1016.3 mb
Dewpoint:	-7°
Humidity:	80%
Visibility:	16 km
Precip in last hr:	NA
Precip last 24 hrs:	0.05 cm

Wind:	31 km/hr W
Sunrise:	6:58 AM
Sunset:	5:32 PM
UV Index:	0 Low

Observed at Alton/St. Louis, St. Louis Regional Airport.
All times shown are local to Alton.

Today

Hi:	-3°
Lo:	-12°

Partly Cloudy

9 AM

-7°

Mostly Cloudy

Noon

-4°

Partly Cloudy

6 PM

-6°

Partly Cloudy

Hourly forecast (next 48 hours)

Five-day forecast (Details)

Tomorrow

Feb 11

Mostly Cloudy

Friday

Feb 12

Snow

Saturday

Feb 13

Snow

Sunday

Feb 14

Mostly Cloudy

Monday

Feb 15

Partly Cloudy

Hi:	-3°
Lo:	-7°

Hi:	0°
Lo:	-4°

Hi:	-1°
Lo:	-7°

Hi:	-2°
Lo:	-8°

Hi:	-3°
Lo:	-8°

Detailed ten-day forecast

View all Alton, IL maps

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Monthly averages & records									°F \| °C
50°	Averages for January Average high: 3° Average low: -6° Record high: 24° (2002) Record low: -27° (1918) Average precip: 6.95 cm Click column for details	Averages for February Average high: 6° Average low: -4° Record high: 29° (1911) Record low: -28° (1905) Average precip: 5.86 cm Click column for details	Averages for March Average high: 12° Average low: 1° Record high: 33° (1929) Record low: -18° (1960) Average precip: 7.95 cm Click column for details	Averages for April Average high: 19° Average low: 7° Record high: 34° (1989) Record low: -7° (1982) Average precip: 9.96 cm Click column for details	Averages for May Average high: 24° Average low: 13° Record high: 37° (1953) Record low: 0° (1966) Average precip: 11.78 cm Click column for details	Averages for June Average high: 29° Average low: 18° Record high: 42° (1952) Record low: 6° (1897) Average precip: 10.9 cm Click column for details	Averages for July Average high: 31° Average low: 20° Record high: 44° (1954) Record low: 10° (1972) Average precip: 10.86 cm Click column for details	Averages for August Average high: 30° Average low: 19° Record high: 42° (1934) Record low: 8° (1986) Average precip: 9.32 cm Click column for details	Averages for September Average high: 26° Average low: 14° Record high: 40° (1984) Record low: -1° (1995) Average precip: 7.38 cm Click column for details	Averages for October Average high: 20° Average low: 8° Record high: 35° (2006) Record low: -6° (1925) Average precip: 8.68 cm Click column for details	Averages for November Average high: 12° Average low: 2° Record high: 29° (1999) Record low: -16° (1929) Average precip: 9.63 cm Click column for details	Averages for December Average high: 6° Average low: -4° Record high: 24° (1928) Record low: -27° (1983) Average precip: 7.75 cm Click column for details
40°
30°
20°
10°
0°
-10°
-20°
-30°
-40°


	6.95	5.86	7.95	9.96	11.78	10.9	10.86	9.32	7.38	8.68	9.63	7.75
Precipitation (cm)

Daily averages for February

Day	Forecast	Description	Precip chance
Detailed weather forecast			°F \| °C
Today Feb 10 Details	Partly Cloudy Hi: -3° Lo: -12°	Day: Partly Cloudy. High -3C. Winds NW at 10 mph. Air Quality: Good, UV Index: 3	0%
Today Feb 10 Details	Partly Cloudy Hi: -3° Lo: -12°	Night: Fair. Low -12C. Light winds.	0%
Tomorrow Feb 11 Details	Mostly Cloudy Hi: -3° Lo: -7°	Day: Mostly Cloudy. High -3C. Light winds. Air Quality: NA, UV Index: 3	0%
Tomorrow Feb 11 Details	Mostly Cloudy Hi: -3° Lo: -7°	Night: Snow Showers. Low -7C. Winds SE at 5 mph.	20%
Friday Feb 12	Snow Hi: 0° Lo: -4°	Snow. High 0C and low -4C. Winds W at 5 mph. Air Quality: NA, UV Index: 2	20%
Saturday Feb 13	Snow Hi: -1° Lo: -7°	Snow. High -1C and low -7C. Winds NW at 9 mph. Air Quality: NA, UV Index: NA	40%
Sunday Feb 14	Mostly Cloudy Hi: -2° Lo: -8°	Mostly Cloudy. High -2C and low -8C. Winds NW at 15 mph. Air Quality: NA, UV Index: NA	0%