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Arroyo Grande, CA Weather

Live radar, hourly and 7-day forecast, and National Weather Service alerts for Arroyo Grande, San Luis Obispo County, California.

Updated Jul 29, 2026, 2:09 PM local time · Radar refreshes every 5 minutes

☀️
Arroyo Grande
Clear
65°F
Feels like 69°F
Wind 7 mph
Humidity 81%
Cloud cover 19%
UV index 7
Alerts 3

Active alerts (3)

Extreme Heat WarningSevere
Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Los Angeles County San Gabriel Valley
Until Aug 3, 2026, 3:00 AM
Full details
* WHAT...Dangerously hot conditions with temperatures of 95 to 110
expected.

* WHERE...A large portion of southwest California including the
coastal ranges and adjacent foothills, as well as the coastal
valleys.

* WHEN...From 10 AM Friday to 8 PM PDT Sunday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

* ADDITIONAL DETAILS...Heat hazards may extend into next week for
portions of the region.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Stay cool, stay hydrated, stay informed.

Monitor the latest forecasts and warnings for updates.

If you do not have air conditioning in your home or lack shelter, you
can call 2 1 1 for assistance locating appropriate shelter from the
heat.
Beach Hazards StatementModerate
San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Until Aug 2, 2026, 12:00 AM
Full details
* WHAT...Dangerous rip currents and elevated surf.

* WHERE...San Luis Obispo County Beaches and Santa Barbara
County Central Coast Beaches.

* WHEN...Through Saturday afternoon.

* IMPACTS...There is an increased risk of ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Waves can
wash people off beaches and rocks, and capsize small boats
nearshore.

* ADDITIONAL DETAILS...There is an increased risk of ocean
drowning due to hazardous rip currents. Rip currents can pull
swimmers and surfers out to sea. Waves can wash people off
beaches and rocks, and capsize small boats nearshore.

Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.
Heat AdvisoryModerate
San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Northern Ventura County Mountains
Until Aug 3, 2026, 3:00 AM
Full details
* WHAT...Temperatures of 85 to 100 expected.

* WHERE...A portion of southwest California near the coast including
the beaches.

* WHEN...From 10 AM Friday to 8 PM PDT Sunday.

* IMPACTS...Heat hazards may extend into next week for portions of
the region.

* ADDITIONAL DETAILS...Heat hazards may extend into next week for
portions of the region.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Monitor the latest forecasts and warnings for updates.

If you do not have air conditioning in your home or lack shelter, you
can call 2 1 1 for assistance locating appropriate shelter from the
heat.

Arroyo Grande weather radar

Light Heavy

Next 24 hours

Now
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65°F
 
3 PM
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64°F
 
4 PM
🌤️
65°F
 
5 PM
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66°F
 
6 PM
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67°F
 
7 PM
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66°F
 
8 PM
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63°F
 
9 PM
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60°F
 
10 PM
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59°F
 
11 PM
🌤️
57°F
 
12 AM
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57°F
 
1 AM
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57°F
 
2 AM
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56°F
 
3 AM
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56°F
 
4 AM
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56°F
 
5 AM
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56°F
 
6 AM
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56°F
 
7 AM
🌫️
56°F
 
8 AM
59°F
 
9 AM
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64°F
 
10 AM
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64°F
 
11 AM
☀️
65°F
 
12 PM
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66°F
 
1 PM
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67°F
 

7-day forecast

Today
Jul 29
🌫️
69°F
55°F
Thu
Jul 30
🌫️
76°F
56°F
Fri
Jul 31
☁️
71°F
53°F
Sat
Aug 1
☀️
72°F
55°F
Sun
Aug 2
☁️
67°F
55°F
Mon
Aug 3
☁️
67°F
55°F
Tue
Aug 4
☀️
68°F
54°F

Weather near Arroyo Grande

8 mi Nipomo, CA12 mi San Luis Obispo, CA14 mi Santa Maria, CA20 mi Orcutt, CA26 mi Atascadero, CA34 mi Lompoc, CA36 mi Paso Robles, CA64 mi Goleta, CA
Alerts are relayed from the National Weather Service and may lag the official source. In a life-threatening situation always follow weather.gov and local emergency broadcasts.