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Riverton Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Chance of T-Storm | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Clearing |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C |
| POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 229 AM EDT Mon Sep 21 2026 
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Issued: 258 AM EDT Mon Sep 21 2026
Key Messages
- Scattered to numerous showers and with some storms early this morning, with showers diminishing during the day
- Locally heavy rain is possible early this morning
- Much cooler temperatures for the first half of the week, gradually warming back to near normal levels by next weekend
Discussion
(Today through Sunday)... Issued at 258 AM EDT Mon Sep 21 2026
Early This Morning...
The surface front has moved south of central Indiana, but a couple of upper impulses along with a surface wave riding...