National Weather Service United States Department of Commerce

Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Sacramento County Decision Support Graphics

Quick access to heat, cold, precipitation, and wind graphics for emergency management partners.

Select a hazard from the dropdown, then choose a date. Use “Open full size” for briefings or sharing.

Note: Images generally update twice a day around 2:30 AM PST and 2:30 PM PST. This page is not an official product, and graphics may not always update. Maintained by the National Weather Service Sacramento, California forecast office.

Heat Risk — Day 1

Heat Risk Day 1 graphic

Viewing Heat Risk for Day 1. Click the image or “Open full size” to open the graphic in a separate window.

*Note: HeatRisk Probabilities are experimental and may be unavailable at times.

Watch/Warning/Advisory Products

No Products in Effect For Sacramento County

As of: 08/17 03:35 AM

City Point Forecast

Choose one city or station at a time. The data and calculations are unchanged; this only changes how the table is displayed.

Downtown Sac MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
97% 100% 99% 97% 99% 99% 100%
HeatRisk
Prob Moderate+
<10% 32% 46% 34% 21% <10% 22%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
93-95° 95-98° 95-99° 92-98° 91-96° 90-95° 93-97°
High Temp
Forecast
93° 96° 96° 94° 93° 92° 94°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
63-65° 61-63° 62-66° 61-66° 62-65° 60-64° 59-64°
Low Temp
Forecast
64° 61° 64° 63° 63° 62° 61°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
16-19 mph 15-19 mph 16-19 mph 17-20 mph 18-21 mph 16-19 mph 15-19 mph
Wind Gust
Forecast
18 mph 17 mph 17 mph 18 mph 19 mph 17 mph 17 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Elk Grove MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
98% 100% 99% 97% 99% 100% 100%
HeatRisk
Prob Moderate+
<10% 20% 35% 24% 11% <10% 14%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
91-94° 94-97° 93-97° 91-97° 90-95° 89-94° 91-96°
High Temp
Forecast
92° 95° 94° 92° 91° 91° 93°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
59-61° 57-58° 58-62° 57-61° 58-61° 57-60° 55-60°
Low Temp
Forecast
59° 57° 59° 59° 59° 58° 57°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 9% 0% 0%
Wind Gust
Range
19-22 mph 18-21 mph 18-22 mph 19-22 mph 21-24 mph 18-22 mph 18-21 mph
Wind Gust
Forecast
20 mph 19 mph 20 mph 20 mph 22 mph 19 mph 19 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Folsom MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Moderate Minor Minor Minor Minor
HeatRisk
Prob Minor+
100% 100% 100% 98% 99% 100% 100%
HeatRisk
Prob Moderate+
17% 56% 66% 47% 30% 20% 30%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
94-97° 96-98° 97-100° 94-99° 93-97° 91-96° 94-98°
High Temp
Forecast
95° 97° 97° 95° 94° 93° 95°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
63-64° 61-63° 62-65° 61-65° 61-65° 59-64° 59-64°
Low Temp
Forecast
63° 61° 63° 63° 63° 61° 61°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
13-15 mph 12-15 mph 13-16 mph 14-16 mph 15-17 mph 13-16 mph 12-15 mph
Wind Gust
Forecast
14 mph 13 mph 14 mph 15 mph 16 mph 15 mph 13 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Galt MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
97% 100% 99% 97% 99% 100% 100%
HeatRisk
Prob Moderate+
<10% 14% 28% 23% <10% <10% 12%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
90-93° 93-96° 93-97° 90-96° 90-94° 89-93° 91-95°
High Temp
Forecast
91° 94° 94° 92° 91° 90° 92°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
60-62° 57-59° 59-63° 59-63° 59-62° 57-61° 56-61°
Low Temp
Forecast
60° 58° 60° 60° 60° 59° 58°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 9% 0% 0%
Wind Gust
Range
19-22 mph 18-21 mph 18-21 mph 19-22 mph 21-24 mph 18-22 mph 18-22 mph
Wind Gust
Forecast
21 mph 19 mph 19 mph 20 mph 22 mph 20 mph 19 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Mather MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
98% 100% 99% 97% 99% 100% 100%
HeatRisk
Prob Moderate+
<10% 24% 44% 31% 15% <10% 19%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
93-96° 95-98° 95-99° 93-99° 92-97° 90-95° 93-97°
High Temp
Forecast
94° 96° 96° 94° 93° 92° 94°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
61-62° 58-60° 59-63° 58-63° 59-62° 57-61° 56-61°
Low Temp
Forecast
61° 58° 60° 60° 60° 58° 58°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
16-19 mph 15-18 mph 16-18 mph 16-19 mph 17-20 mph 15-19 mph 15-18 mph
Wind Gust
Forecast
17 mph 16 mph 17 mph 17 mph 18 mph 17 mph 16 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
McClellan MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
97% 100% 99% 97% 99% 99% 100%
HeatRisk
Prob Moderate+
<10% 51% 61% 38% 28% 12% 27%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
94-96° 96-98° 96-99° 93-99° 93-97° 91-96° 93-97°
High Temp
Forecast
94° 97° 97° 95° 94° 93° 95°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
65-66° 62-64° 63-67° 62-67° 63-66° 61-65° 60-65°
Low Temp
Forecast
65° 62° 64° 64° 64° 63° 62°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
15-17 mph 14-17 mph 15-18 mph 16-19 mph 17-20 mph 15-19 mph 13-17 mph
Wind Gust
Forecast
16 mph 15 mph 16 mph 17 mph 18 mph 16 mph 15 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Rancho Murieta MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
99% 100% 100% 98% 99% 100% 100%
HeatRisk
Prob Moderate+
<10% 37% 52% 36% 23% 12% 21%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
93-96° 96-98° 96-99° 94-99° 93-97° 91-96° 93-98°
High Temp
Forecast
94° 96° 97° 95° 94° 93° 95°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
62-64° 59-62° 61-64° 60-65° 61-64° 58-63° 58-63°
Low Temp
Forecast
62° 60° 62° 62° 62° 60° 60°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
15-18 mph 14-16 mph 14-17 mph 15-17 mph 16-19 mph 14-17 mph 14-17 mph
Wind Gust
Forecast
16 mph 15 mph 15 mph 15 mph 17 mph 15 mph 15 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Sac Exec MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
98% 100% 99% 97% 99% 100% 100%
HeatRisk
Prob Moderate+
<10% 28% 42% 28% 17% <10% 17%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
91-94° 94-97° 94-97° 91-97° 91-95° 90-94° 91-96°
High Temp
Forecast
92° 95° 95° 93° 92° 91° 93°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
61-63° 59-60° 60-64° 59-63° 60-63° 59-62° 58-62°
Low Temp
Forecast
62° 59° 61° 61° 61° 60° 60°
Wind Gust
Prob 25 mph
4% 4% 9% 13% 26% 9% 4%
Wind Gust
Range
20-23 mph 18-23 mph 19-24 mph 20-24 mph 22-26 mph 19-23 mph 19-23 mph
Wind Gust
Forecast
21 mph 20 mph 21 mph 22 mph 24 mph 21 mph 21 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Sac International MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
97% 100% 99% 97% 99% 99% 100%
HeatRisk
Prob Moderate+
<10% 20% 31% 27% 12% <10% 10%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
92-95° 95-97° 95-98° 92-98° 92-96° 90-95° 92-96°
High Temp
Forecast
93° 95° 95° 93° 93° 92° 93°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
60-62° 57-59° 59-62° 58-62° 59-61° 57-61° 55-60°
Low Temp
Forecast
60° 58° 60° 59° 60° 58° 58°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
16-19 mph 15-18 mph 17-20 mph 17-20 mph 18-21 mph 16-20 mph 16-19 mph
Wind Gust
Forecast
17 mph 16 mph 18 mph 18 mph 20 mph 18 mph 17 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"
Walnut Grove MondayAug. 17 TuesdayAug. 18 WednesdayAug. 19 ThursdayAug. 20 FridayAug. 21 SaturdayAug. 22 SundayAug. 23
HeatRisk
Forecast
Minor Minor Minor Minor Minor Minor Minor
HeatRisk
Prob Minor+
97% 100% 99% 96% 99% 99% 100%
HeatRisk
Prob Moderate+
<10% <10% 13% 11% <10% <10% <10%
HeatRisk
Prob Major+
<10% <10% <10% <10% <10% <10% <10%
HeatRisk
Prob Extreme+
<10% <10% <10% <10% <10% <10% <10%
High Temp
Prob 105°
0% 0% 0% 0% 0% 0% 0%
High Temp
Range
88-91° 91-94° 90-95° 88-94° 87-92° 87-91° 89-93°
High Temp
Forecast
89° 92° 92° 90° 89° 89° 90°
Low Temp
Prob 75°
or Higher
0% 0% 0% 0% 0% 0% 0%
Low Temp
Range
58-60° 56-58° 57-61° 57-61° 58-61° 57-60° 55-59°
Low Temp
Forecast
59° 57° 59° 59° 59° 58° 57°
Wind Gust
Prob 25 mph
30% 17% 22% 35% 57% 26% 26%
Wind Gust
Range
23-27 mph 22-25 mph 22-26 mph 23-26 mph 25-28 mph 22-26 mph 22-26 mph
Wind Gust
Forecast
24 mph 23 mph 23 mph 25 mph 26 mph 23 mph 23 mph
Rain
Prob 0.25"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 0.5"
0% 0% 0% 0% 0% 0% 0%
Rain
Prob 1.0"
0% 0% 0% 0% 0% 0% 0%
Rain
Range
0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Rain
Forecast
0.0" 0.0" 0.0" 0.0" 0.0" 0.0" 0.0"

Legend

HeatRisk

Low Minor Moderate Major Extreme

High Temperature

< <10% 10-39% 40-69% >70%

Low Temperature / Warm Nights

< <10% 10-39% 40-69% >70%

Snow

< <10% 10-39% 40-69% >70%

Wind

< <10% 10-39% 40-69% >70%

Rain

< <10% 10-39% 40-69% >70%

Updated: 08/17 03:35 AM

Source: NBM (08/17/2026 07z)