Weather WorldNapierville, PA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Napierville Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | |  | | | | | | |
| Mostly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Partly Sunny | Mostly Cloudy |
| Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1200 PM EDT Thu Oct 29 2026 
Napierville Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Napierville Weather Map
Napierville Quick Facts
Napierville Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 534 AM EDT Thu Oct 29 2026
Key Messages
1) Dense fog this morning, then sunny and warm
2) Fire weather concerns increasing by Friday
3) Rain-free and mild conditions into early November
Discussion
... KEY MESSAGE 1: Dense fog this morning, then sunny and warm
In the wake of yesterday`s warm front, increasing dewpoints and clear skies have led to areas of dense fog this morning. Nighttime microphysics imagery vividly depicts fog-filled valleys across Central PA, prompting the issuance of a Dense Fog Advisory until 14Z/10AM. Mean...