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Jamestown Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
 |  |  |  | |  | | | | | |
| Mostly Clear | Chance of T-Storm | Clearing | Patchy Fog | Mostly Clear | Mostly Clear | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear |
| Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 126 AM CDT Sun Sep 13 2026 
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Issued: 246 AM CDT Sun Sep 13 2026
Key Messages
- Dangerous levels of heat stress are expected during the late morning and afternoon hours each day over the first half of this week.
Discussion
... Issued at 246 AM CDT Sun Sep 13 2026
Through Tuesday: Heat is becoming the main forecast focus as mid/upper ridging begins to build across the Southern Plains and Lower Mississippi Valley. High temperatures over the next few days will begin to reach the upper 90s across the area to near 100 across the ArkLaMiss Delta. Heat indices will reach ...