Alton, Iowa 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Overcast 90°F 32°C Heat Index: 105°F	Observed at: Alton, IA	Elevation: 1252 ft | 382 m
	Last Updated: July 25, 7:45 PM Timezone: GMT -5/-4
	Sky Conditions: Overcast	Temperature: 90°F | 32°C
	Pressure: 28.4 in | 961.7 mb	Dewpoint: 78°F | 26°C
	Humidity: 69%	Wind: S 6 mph | S 10 kph
	Feels Like: 101°F | 38°C	Visibility: 49.5 mi | 79.7 km
	Lat/Long: 42.9866 | -96.0129	Sunrise: 6:08 AM   Sunset: 8:52 PM

7 Day Graphical Forecast

Valid: 11:19 AM 7/28/2026

Today Foggy 92 |69 °F 34 |20 °C 13% Chance Precipitation Sunday Light Drizzle 102 |73 °F 39 |23 °C 23% Chance Precipitation Monday Overcast 108 |77 °F 42 |25 °C 20% Chance Precipitation Tuesday Light Drizzle 95 |75 °F 35 |24 °C 3% Chance Precipitation Wednesday Partly Cloudy 100 |68 °F 38 |20 °C 6% Chance Precipitation Thursday Drizzle 81 |68 °F 27 |20 °C 39% Chance Precipitation Friday Overcast 101 |69 °F 38 |21 °C 39% Chance Precipitation

7 Hour Graphical Forecast

Valid: 11:19 AM 7/28/2026

11 AM Overcast 82 °F 3% Chance Precipitation

12 PM Overcast 84 °F 3% Chance Precipitation

1 PM Light Drizzle 83 °F 3% Chance Precipitation

2 PM Overcast 85 °F 2% Chance Precipitation

3 PM Overcast 85 °F 2% Chance Precipitation

4 PM Overcast 94 °F 2% Chance Precipitation

5 PM Partly Cloudy 95 °F 2% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Alton, IA - (Fahrenheit & Celsius) Valid: 11:19 AM 7/28/2026 Today Foggy with a high near 92°F [34°C]. SSW wind to around 11 mph [18 kph], with gusts to near 23 mph [36 kph]. Dewpoint near 78°F [26°C] with humidity of 97%. Pressure around 28.40 in [961.7 mb]. UV Index: 7.5. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Tonight Foggy with a low around 69°F [20°C]. SSW wind to around 11 mph [18 kph], with gusts to near 23 mph [36 kph]. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Sunday Light Drizzle with a high near 102°F [39°C]. SSW wind to around 15 mph [23 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 78°F [26°C] with humidity of 69%. Pressure around 28.40 in [961.7 mb]. UV Index: 5.95. Chance of precipitation 23% with QPF of 0.03 in [0.8 mm]. Sunday Night Light Drizzle with a low around 73°F [23°C]. SSW wind to around 15 mph [23 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 23% with QPF of 0.03 in [0.8 mm]. Monday Overcast with a high near 108°F [42°C]. ENE wind to around 11 mph [18 kph], with gusts to near 20 mph [31 kph]. Dewpoint near 78°F [26°C] with humidity of 78%. Pressure around 28.40 in [961.7 mb]. UV Index: 7.75. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 77°F [25°C]. ENE wind to around 11 mph [18 kph], with gusts to near 20 mph [31 kph]. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Tuesday Light Drizzle with a high near 95°F [35°C]. E wind to around 22 mph [36 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 78°F [26°C] with humidity of 61%. Pressure around 28.40 in [961.7 mb]. UV Index: 6.3. Chance of precipitation 3% with QPF of 0.01 in [0.2 mm]. Tuesday Night Light Drizzle with a low around 75°F [24°C]. E wind to around 22 mph [36 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 3% with QPF of 0.01 in [0.2 mm]. Wednesday Partly Cloudy with a high near 100°F [38°C]. S wind to around 13 mph [21 kph], with gusts to near 33 mph [53 kph]. Dewpoint near 78°F [26°C] with humidity of 74%. Pressure around 28.40 in [961.7 mb]. UV Index: 7.65. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Wednesday Night Partly Cloudy with a low around 68°F [20°C]. S wind to around 13 mph [21 kph], with gusts to near 33 mph [53 kph]. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Thursday Drizzle with a high near 81°F [27°C]. S wind to around 17 mph [27 kph], with gusts to near 32 mph [51 kph]. Dewpoint near 78°F [26°C] with humidity of 94%. Pressure around 28.40 in [961.7 mb]. UV Index: 2.3. Chance of precipitation 39% with QPF of 0.04 in [0.9 mm]. Thursday Night Drizzle with a low around 68°F [20°C]. S wind to around 17 mph [27 kph], with gusts to near 32 mph [51 kph]. Chance of precipitation 39% with QPF of 0.04 in [0.9 mm]. Friday Overcast with a high near 101°F [38°C]. ESE wind to around 12 mph [19 kph], with gusts to near 20 mph [31 kph]. Dewpoint near 78°F [26°C] with humidity of 82%. Pressure around 28.40 in [961.7 mb]. UV Index: 7.4. Chance of precipitation 39% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 69°F [21°C]. ESE wind to around 12 mph [19 kph], with gusts to near 20 mph [31 kph]. Chance of precipitation 39% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Alton, IA

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Sunday: 0.8 mm | 0.03 in

Sunday Night: 0.8 mm | 0.03 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.2 mm | 0.01 in

Tuesday Night: 0.2 mm | 0.01 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

Thursday: 0.9 mm | 0.04 in

Thursday Night: 0.9 mm | 0.04 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Alton, IA

Today: SSW @ 18 kph | 11 mph

Tonight: SSW @ 18 kph | 11 mph

Sunday: SSW @ 23 kph | 15 mph

Sunday Night: SSW @ 23 kph | 15 mph

Monday: ENE @ 18 kph | 11 mph

Monday Night: ENE @ 18 kph | 11 mph

Tuesday: E @ 36 kph | 22 mph

Tuesday Night: E @ 36 kph | 22 mph

Wednesday: S @ 21 kph | 13 mph

Wednesday Night: S @ 21 kph | 13 mph

Thursday: S @ 27 kph | 17 mph

Thursday Night: S @ 27 kph | 17 mph

Friday: ESE @ 19 kph | 12 mph

Friday Night: ESE @ 19 kph | 12 mph

7 Day and Night - Maximum Humidity Forecast for Alton, IA

Today: 97 %

Tonight: 97 %

Sunday: 69 %

Sunday Night: 69 %

Monday: 78 %

Monday Night: 78 %

Tuesday: 61 %

Tuesday Night: 61 %

Wednesday: 74 %

Wednesday Night: 74 %

Thursday: 94 %

Thursday Night: 94 %

Friday: 82 %

Friday Night: 82 %

7 Day and Night - Snowfall Totals Forecast for Alton, IA

Today: 0.0 cm | 0.00 in

Tonight: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

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