Alton, MO Weather Forecast

Local 7-day forecast

74°

Mostly Cloudy

Track current conditions, temperature changes, wind, and the full daily outlook for Alton, MO in one place.

Tuesday, October 27, 2026

Wind: 1 to 5 mph SE

Tuesday

Mostly cloudy, with a high near 74.

Local 7-day forecast

Local Weather Overview

This forecast page for Alton, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 25, 2026 4:11 AM CDT.

The active forecast window currently covers Oct 27 to Oct 31, 2026 for Alton, MO.

Page Snapshot

Page focus: city weather
Forecast window: Oct 27 to Oct 31, 2026
Latest sync: Oct 25, 2026 4:11 AM CDT
Forecast office: SGF
Source: NOAA / NWS

Next High

74°F

Tuesday

Next Low

48°F

Tuesday Night

Rain Outlook

Periods mentioning precipitation

Windiest

3 to 7 mph

Saturday

Daily Outlook

Today

Oct 27

Mostly Cloudy

74 °F

/ 48°F

Wind 1 to 5 mph

Wed

Oct 28

Sunny

79 °F

/ 50°F

Wind 1 to 6 mph

Thu

Oct 29

Sunny

80 °F

/ 50°F

Wind 1 to 5 mph

Fri

Oct 30

Mostly Sunny

78 °F

/ 54°F

Wind 1 to 6 mph

Sat

Oct 31

Chance Rain Showers

75 °F

Wind 3 to 7 mph

This Week in Alton

Thursday looks like the warmest upcoming period in Alton at 80 degrees F.

Tuesday Night is the coolest period ahead with temperatures near 48 degrees F.

The strongest winds are forecast for Saturday at about 3 to 7 mph SE.

Precipitation is mentioned in 1 upcoming forecast period.

Forecast Details

Last updated: Oct 25, 2026 4:11 AM CDT
Coverage: 5 days
Time zone: America/Chicago
Forecast office: SGF
Radar station: KSGF

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tuesday Night

Oct 27

48°F

Partly Cloudy

0 to 3 mph SE

Partly cloudy, with a low around 48.

Wednesday

Oct 28

79°F

Sunny

1 to 6 mph S

Sunny, with a high near 79.

Wednesday Night

Oct 28

50°F

Clear

1 to 5 mph S

Clear, with a low around 50.

Thursday

Oct 29

80°F

Sunny

1 to 5 mph S

Sunny, with a high near 80.

Thursday Night

Oct 29

50°F

Partly Cloudy

3 mph SE

Partly cloudy, with a low around 50.

Friday

Oct 30

78°F

Mostly Sunny

1 to 6 mph SE

Mostly sunny, with a high near 78.

Friday Night

Oct 30

54°F

Mostly Cloudy

3 mph SE

Mostly cloudy, with a low around 54.

Saturday

Oct 31

75°F

Chance Rain Showers

3 to 7 mph SE

A chance of rain showers after 7am. Partly sunny, with a high near 75.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Tuesday Oct 27	Mostly Cloudy	74°F	1 to 5 mph SE	Mostly cloudy, with a high near 74.
Tuesday Night Oct 27	Partly Cloudy	48°F	0 to 3 mph SE	Partly cloudy, with a low around 48.
Wednesday Oct 28	Sunny	79°F	1 to 6 mph S	Sunny, with a high near 79.
Wednesday Night Oct 28	Clear	50°F	1 to 5 mph S	Clear, with a low around 50.
Thursday Oct 29	Sunny	80°F	1 to 5 mph S	Sunny, with a high near 80.
Thursday Night Oct 29	Partly Cloudy	50°F	3 mph SE	Partly cloudy, with a low around 50.
Friday Oct 30	Mostly Sunny	78°F	1 to 6 mph SE	Mostly sunny, with a high near 78.
Friday Night Oct 30	Mostly Cloudy	54°F	3 mph SE	Mostly cloudy, with a low around 54.
Saturday Oct 31	Chance Rain Showers	75°F	3 to 7 mph SE	A chance of rain showers after 7am. Partly sunny, with a high near 75.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Alton.

Thayer

Population 2,103

Region Links

Oregon County weather

County forecast page

Missouri weather

Statewide weather overview

United States weather

National weather entry point

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.