National Weather Service State College, PA
Weather Impact Matrix for Northumberland County Decision Support


Valid: 06/15/2025 04 PM - 06/16/2025 02 AM EDT

Sun
06/15
4 PM
Sun
06/15
5 PM
Sun
06/15
6 PM
Sun
06/15
7 PM
Sun
06/15
8 PM
Sun
06/15
9 PM
Sun
06/15
10 PM
Sun
06/15
11 PM
Mon
06/16
12 AM
Mon
06/16
1 AM
Mon
06/16
2 AM
Temperature63°F63°F64°F65°F66°F65°F64°F63°F62°F62°F61°F
Heat
Index
65°F67°F66°F66°F66°F65°F64°F63°F62°F62°F61°F
Wind
Speed
3 mph4 mph3 mph2 mph2 mph2 mph2 mph1 mph1 mph1 mph1 mph
Wind
Direction
EEEEEEEEEEE
Wind
Gust
10 mph9 mph9 mph8 mph8 mph6 mph6 mph6 mph5 mph5 mph5 mph
Chance of
Precipitation
26%21%18%17%24%23%11%10%9%11%11%
WeatherRain
Thunder
Rain
Thunder
Rain
Thunder
Rain
Thunder
Rain
Thunder
Rain
Thunder
NoneNoneNoneNoneNone
Sky
Cover
89%87%83%88%90%90%93%87%89%89%88%
Relative
Humidity
86%78%80%78%78%84%89%89%89%90%93%
Rainfall0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in

Issued: Sunday June 15, 2025 04:58 PM EDT


Threat LevelNoneLimitedElevatedSignificantExtreme
Temperature≤80 °F80 to 89 °F90 to 94 °F95 to 99 °F≥100 °F
Heat Index≤80 °F80 to 89 °F90 to 94 °F95 to 99 °F≥100 °F
Wind Speed≤10 mph10 to 14 mph15 to 24 mph25 to 34 mph≥35 mph
Wind Gust≤15 mph15 to 24 mph25 to 34 mph35 to 44 mph≥45 mph
Chance of Precipitation≤15 %15 to 24 %25 to 54 %55 to 74 %≥75 %
Relative Humidity≥15 %15 to 21 %20 to 31 %30 to 41 %≤40 %
Rainfall≤0.1 in0.1 to 0.24 in0.25 to 0.49 in0.5 to 0.99 in≥1.0 in
Note - Grey color indicates no thresholds assigned