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Weather Extremes
| Past 24 Hours |
| USA High Temp |
| 117°F at Laughlin Bullhead Intl Ap, AZ |
| USA Low Temp |
| 37°F at Mount Washington, NH |
| USA Most Rain |
| 5.70in at Galesburg Municipal Ap, IL |
| Date of USA Report |
| Monday, July 20, 2026 |
| CA High Temp |
| 110°F at Needles, CA 110°F at Blythe Asos, CA |
| CA Low Temp |
| 50°F at Rohnerville Airport, CA 50°F at Fritzsche Aaf, CA |
| CA Most Rain |
| none |
| Date of CA Report |
| Monday, July 20, 2026 |
| Data from National Weather Service |
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| Radar/Satellite images courtesy of NOAA/NWS and Weather Underground. | |
| Updated: @ 21-Jul-2026 5:40pm - next update at 5:42pm | |||||||||||||||||||||||||||||||||||||||
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| NWS Weather Forecast - Outlook: This Afternoon & Tonight | ||||||
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| Countdown to Fall | ||
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| WEATHER STORY Sioux Falls Weather Forecast Office |
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Cooler afternoon highs and lower dew points will lead to very pleasant days through the end of the work week. However, this weekend the heat and humidity returns with highs in the 90s to low 100s and dew points in the upper 60s to low 70s. Heat index values will climb into the low 100s for much of the region, and heat related headlines may be needed at times this weekend. There are two chances for isolated, light sprinkles to rain showers Wednesday morning and again Thursday afternoon, mainly south of I-90. Total rain will be very light at a hundredth or two to a couple of tenths. No meaningful rainfall is expected for the next seven days.
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Data Courtesy of Sioux Falls Weather Forecast Office
