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 Temperature 63°F 63°F 64°F 65°F 66°F 65°F 64°F 63°F 62°F 62°F 61°F Heat Index 65°F 67°F 66°F 66°F 66°F 65°F 64°F 63°F 62°F 62°F 61°F Wind Speed 3 mph 4 mph 3 mph 2 mph 2 mph 2 mph 2 mph 1 mph 1 mph 1 mph 1 mph Wind Direction E E E E E E E E E E E Wind Gust 10 mph 9 mph 9 mph 8 mph 8 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph Chance of Precipitation 26% 21% 18% 17% 24% 23% 11% 10% 9% 11% 11% Weather Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder None None None None None 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% Rainfall 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in Issued: Sunday June 15, 2025 04:58 PM EDT

Threat Level	None	Limited	Elevated	Significant	Extreme
Temperature	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Heat Index	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Wind Speed	≤10 mph	10 to 14 mph	15 to 24 mph	25 to 34 mph	≥35 mph
Wind Gust	≤15 mph	15 to 24 mph	25 to 34 mph	35 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 in	0.1 to 0.24 in	0.25 to 0.49 in	0.5 to 0.99 in	≥1.0 in

Note -

Grey color indicates no thresholds assigned