National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. 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 PM

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+
100% 98% 99% 97% 97% 98% 99%
HeatRisk
Prob Moderate+
<10% 37% 47% 20% <10% <10% 15%
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
91-95° 95-98° 94-99° 91-97° 88-95° 88-93° 90-95°
High Temp
Forecast
92° 95° 95° 92° 90° 90° 91°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 60-63° 61-66° 61-66° 61-65° 59-64° 59-65°
Low Temp
Forecast
--° 61° 63° 63° 63° 61° 62°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
12-15 mph 12-15 mph 11-15 mph 14-17 mph 16-19 mph 10-15 mph 10-17 mph
Wind Gust
Forecast
13 mph 13 mph 13 mph 15 mph 18 mph 13 mph 14 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+
100% 99% 100% 99% 98% 97% 99%
HeatRisk
Prob Moderate+
<10% <10% 19% 12% <10% <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
89-93° 93-96° 92-98° 90-95° 87-93° 87-92° 88-94°
High Temp
Forecast
90° 93° 93° 91° 89° 88° 90°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 56-59° 57-61° 57-61° 57-61° 55-60° 55-60°
Low Temp
Forecast
--° 57° 59° 59° 59° 57° 58°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
14-17 mph 14-17 mph 13-17 mph 15-19 mph 18-21 mph 12-17 mph 12-18 mph
Wind Gust
Forecast
15 mph 15 mph 15 mph 18 mph 20 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"
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% 99% 100% 99% 100% 100%
HeatRisk
Prob Moderate+
23% 45% 62% 39% 19% 10% 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
92-97° 95-98° 95-100° 93-98° 90-97° 89-94° 91-96°
High Temp
Forecast
93° 95° 96° 94° 92° 91° 93°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 59-63° 61-65° 60-66° 60-65° 58-63° 59-64°
Low Temp
Forecast
--° 61° 63° 63° 62° 60° 61°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
9-11 mph 9-11 mph 9-11 mph 11-14 mph 12-15 mph 9-11 mph 9-13 mph
Wind Gust
Forecast
9 mph 10 mph 10 mph 12 mph 15 mph 10 mph 11 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+
100% 97% 100% 99% 98% 96% 99%
HeatRisk
Prob Moderate+
<10% <10% 24% <10% <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
88-92° 92-95° 92-97° 89-95° 86-93° 87-92° 88-94°
High Temp
Forecast
90° 93° 93° 91° 89° 88° 90°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 57-60° 58-62° 57-63° 58-62° 56-61° 56-62°
Low Temp
Forecast
--° 58° 60° 60° 60° 58° 59°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
14-17 mph 14-17 mph 14-17 mph 15-19 mph 18-21 mph 13-17 mph 12-17 mph
Wind Gust
Forecast
16 mph 15 mph 16 mph 18 mph 21 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"
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+
100% 98% 99% 97% 98% 97% 99%
HeatRisk
Prob Moderate+
<10% 22% 34% 18% <10% <10% 13%
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
91-95° 94-98° 95-99° 91-97° 89-95° 88-93° 90-96°
High Temp
Forecast
93° 95° 95° 93° 90° 90° 92°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 57-60° 58-62° 57-63° 58-62° 56-61° 56-61°
Low Temp
Forecast
--° 58° 60° 60° 59° 58° 59°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
12-14 mph 11-14 mph 11-14 mph 13-16 mph 16-19 mph 10-14 mph 10-16 mph
Wind Gust
Forecast
13 mph 13 mph 13 mph 15 mph 18 mph 13 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"
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+
100% 97% 99% 96% 97% 99% 99%
HeatRisk
Prob Moderate+
23% 43% 58% 31% 12% 10% 18%
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
92-96° 95-98° 95-99° 92-98° 90-96° 89-94° 91-96°
High Temp
Forecast
93° 95° 95° 93° 91° 90° 92°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 61-64° 62-66° 62-67° 62-66° 60-65° 60-66°
Low Temp
Forecast
--° 62° 64° 64° 64° 62° 63°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
10-13 mph 9-13 mph 10-14 mph 12-15 mph 14-17 mph 9-13 mph 9-15 mph
Wind Gust
Forecast
11 mph 11 mph 12 mph 14 mph 17 mph 11 mph 12 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+
100% 100% 99% 100% 98% 98% 100%
HeatRisk
Prob Moderate+
<10% 35% 43% 31% 10% <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
92-96° 95-98° 95-100° 93-98° 90-96° 89-94° 91-96°
High Temp
Forecast
93° 95° 96° 94° 91° 90° 93°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 58-62° 60-64° 59-65° 59-64° 57-63° 59-63°
Low Temp
Forecast
--° 60° 62° 62° 61° 60° 60°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
11-13 mph 9-13 mph 11-13 mph 12-15 mph 14-18 mph 10-14 mph 10-14 mph
Wind Gust
Forecast
12 mph 11 mph 12 mph 14 mph 17 mph 12 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"
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+
100% 99% 100% 99% 98% 97% 99%
HeatRisk
Prob Moderate+
<10% 31% 39% 17% <10% <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
90-94° 94-97° 93-97° 90-96° 87-94° 88-92° 89-95°
High Temp
Forecast
91° 94° 94° 91° 89° 89° 91°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 58-61° 59-63° 59-63° 59-63° 58-62° 58-63°
Low Temp
Forecast
--° 59° 61° 61° 61° 60° 60°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
15-17 mph 14-17 mph 14-17 mph 15-19 mph 18-21 mph 11-17 mph 12-19 mph
Wind Gust
Forecast
16 mph 15 mph 15 mph 18 mph 21 mph 15 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"
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+
100% 97% 99% 95% 96% 96% 98%
HeatRisk
Prob Moderate+
<10% 15% 29% 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
91-95° 94-97° 94-98° 91-97° 89-95° 88-93° 90-94°
High Temp
Forecast
92° 94° 94° 92° 90° 89° 91°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 56-59° 58-62° 57-62° 57-61° 55-61° 56-61°
Low Temp
Forecast
--° 58° 60° 59° 59° 58° 58°
Wind Gust
Prob 25 mph
0% 0% 0% 0% 0% 0% 0%
Wind Gust
Range
11-14 mph 11-14 mph 11-15 mph 13-17 mph 16-19 mph 9-15 mph 10-17 mph
Wind Gust
Forecast
13 mph 12 mph 13 mph 15 mph 19 mph 11 mph 14 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+
100% 97% 100% 97% 98% 97% 99%
HeatRisk
Prob Moderate+
<10% <10% 11% <10% <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
86-90° 91-94° 90-95° 87-93° 84-90° 86-90° 86-93°
High Temp
Forecast
88° 91° 91° 88° 87° 87° 89°
Low Temp
Prob 75°
or Higher
--% 0% 0% 0% 0% 0% 0%
Low Temp
Range
--° 55-58° 57-60° 56-61° 57-60° 55-60° 55-60°
Low Temp
Forecast
--° 57° 58° 58° 58° 57° 57°
Wind Gust
Prob 25 mph
11% 0% 0% 0% 5% 0% 5%
Wind Gust
Range
18-24 mph 17-20 mph 16-20 mph 19-21 mph 21-23 mph 15-21 mph 15-22 mph
Wind Gust
Forecast
21 mph 19 mph 18 mph 20 mph 23 mph 18 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"

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 PM

Source: NBM (08/17/2026 13z)