Alton, California 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Mostly Clear 65°F 18°C	Observed at: Alton, CA	Elevation: 599 ft | 183 m
	Last Updated: July 25, 6:30 PM Timezone: GMT -5/-4
	Sky Conditions: Mostly Clear	Temperature: 65°F | 18°C
	Pressure: 29.95 in | 1014.2 mb	Dewpoint: 60°F | 16°C
	Humidity: 83%	Wind: NNW 5 mph | NNW 8 kph
	Feels Like: 66°F | 19°C	Visibility: 33.2 mi | 53.5 km
	Lat/Long: 40.7996 | -124.1614	Sunrise: 6:06 AM   Sunset: 8:39 PM

7 Day Graphical Forecast

Valid: 6:36 PM 7/25/2026

Today Foggy 71 |51 °F 22 |11 °C 0% Chance Precipitation Sunday Foggy 62 |54 °F 17 |12 °C 0% Chance Precipitation Monday Overcast 71 |52 °F 22 |11 °C 0% Chance Precipitation Tuesday Foggy 71 |53 °F 21 |12 °C 1% Chance Precipitation Wednesday Foggy 70 |55 °F 21 |13 °C 11% Chance Precipitation Thursday Overcast 70 |54 °F 21 |12 °C 3% Chance Precipitation Friday Overcast 71 |50 °F 22 |10 °C 3% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:36 PM 7/25/2026

6 PM Clear 66 °F 0% Chance Precipitation

7 PM Partly Cloudy 63 °F 0% Chance Precipitation

8 PM Overcast 61 °F 0% Chance Precipitation

9 PM Foggy 59 °F 0% Chance Precipitation

10 PM Foggy 59 °F 0% Chance Precipitation

11 PM Foggy 59 °F 0% Chance Precipitation

12 AM Foggy 59 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Alton, CA - (Fahrenheit & Celsius) Valid: 6:36 PM 7/25/2026 Today Foggy with a high near 71°F [22°C]. NW wind to around 8 mph [13 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 60°F [16°C] with humidity of 100%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.95. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tonight Foggy with a low around 51°F [11°C]. NW wind to around 8 mph [13 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Foggy with a high near 62°F [17°C]. N wind to around 8 mph [13 kph], with gusts to near 13 mph [21 kph]. Dewpoint near 60°F [16°C] with humidity of 100%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.9. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Night Foggy with a low around 54°F [12°C]. N wind to around 8 mph [13 kph], with gusts to near 13 mph [21 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 71°F [22°C]. NNW wind to around 8 mph [14 kph], with gusts to near 14 mph [22 kph]. Dewpoint near 60°F [16°C] with humidity of 96%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.8. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 52°F [11°C]. NNW wind to around 8 mph [14 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tuesday Foggy with a high near 71°F [21°C]. NNW wind to around 10 mph [16 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 60°F [16°C] with humidity of 99%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.85. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Tuesday Night Foggy with a low around 53°F [12°C]. NNW wind to around 10 mph [16 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Wednesday Foggy with a high near 70°F [21°C]. NW wind to around 8 mph [14 kph], with gusts to near 10 mph [15 kph]. Dewpoint near 60°F [16°C] with humidity of 97%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.75. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Wednesday Night Foggy with a low around 55°F [13°C]. NW wind to around 8 mph [14 kph], with gusts to near 10 mph [15 kph]. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 70°F [21°C]. NW wind to around 9 mph [14 kph], with gusts to near 8 mph [13 kph]. Dewpoint near 60°F [16°C] with humidity of 94%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.65. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 54°F [12°C]. NW wind to around 9 mph [14 kph], with gusts to near 8 mph [13 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 71°F [22°C]. NW wind to around 8 mph [12 kph], with gusts to near 9 mph [15 kph]. Dewpoint near 60°F [16°C] with humidity of 99%. Pressure around 29.95 in [1014.2 mb]. UV Index: 7.75. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 50°F [10°C]. NW wind to around 8 mph [12 kph], with gusts to near 9 mph [15 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Alton, CA

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 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, CA

Today: NW @ 13 kph | 8 mph

Tonight: NW @ 13 kph | 8 mph

Sunday: N @ 13 kph | 8 mph

Sunday Night: N @ 13 kph | 8 mph

Monday: NNW @ 14 kph | 8 mph

Monday Night: NNW @ 14 kph | 8 mph

Tuesday: NNW @ 16 kph | 10 mph

Tuesday Night: NNW @ 16 kph | 10 mph

Wednesday: NW @ 14 kph | 8 mph

Wednesday Night: NW @ 14 kph | 8 mph

Thursday: NW @ 14 kph | 9 mph

Thursday Night: NW @ 14 kph | 9 mph

Friday: NW @ 12 kph | 8 mph

Friday Night: NW @ 12 kph | 8 mph

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

Today: 100 %

Tonight: 100 %

Sunday: 100 %

Sunday Night: 100 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 99 %

Tuesday Night: 99 %

Wednesday: 97 %

Wednesday Night: 97 %

Thursday: 94 %

Thursday Night: 94 %

Friday: 99 %

Friday Night: 99 %

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

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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